1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63276606da7611b03dff3280fadb2144d6f3828f01a1055054c9ccac9e46e3c1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6d3034c-218c-4e51-a314-ed575c2892dc.json and https://artists.proofprofile.net/proofs/artist/e6d3034c-218c-4e51-a314-ed575c2892dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2b96c5e0d9fea1a7589d1ed1e3bb2a6d491f18f42e8ae80839ec5f22cbf944. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f00e6ce658d1a99c001cb38cd49083aef0f144305fe0544052f2a8e63049e4e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34ecb4c9621b8e7ee7476c06a8c0c230d5de303960929eba1b7dde3a8ae81aa. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ace96fd1e169eed4685158f02f4a96f74924eaf3ff8024ef1893038134cb14a. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:01:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59828aa8e3d24d7ce2de2c757a46d214a49b2238589c0c962d3f4d5eaf948f35. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb252c2dbae014754493efd5ce1e6a1a05e6e32001e95aeaefe81786ca9aa495. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40be23ea26ca65a2fef006ec8294cf372b836797f76074a89c04b29d9bab1476. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced4c7ecf11cd3ce51fb6cfad9fa95e8631d47f170968ff6e49371c9679cb39d. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe141b9498d1f852df351de6b60f7b7f01970649bfbaec667415701a4ea90bb0a. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:08:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac6f5eb42a5fad103902e44a49644a0f0862b7470f0fcf68077f5c16ecebf98. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9effdb841f5feafcbecd5c3f6c39e3af5f3456207b25f74cb97796c0bc5825. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T06:59:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce11ddb57a67471638bad7e0994e98963772978b59c58928a854f9e0ebb152c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183779a04416613d056fe88ffccf724b395226b0d2a00cf0e94dce2f4e2c67fb. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047d4328af522404b754a6b7361ed1a6dd418b0e7ff6dae585a4de723b300f36. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:37:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de621a702d1c196dcdc184526818caf059b6884ef947c614792205adc4a2b22. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:02:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c760e32c7dd5b24bdaa573378cbf3dc6bf010c2bc2d53c9fbe21c0223d7a73. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ320800159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e11d2e4ad6cb29c332a42d3045866af51e23f867e9b7341c7e4dcf4fce0f19. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:11:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ320800161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175593f27bda365bc106b9f5e568fd98415992d2f985d16d9e2bd4ca7920de5d. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:04:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ320800164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49460f154e7711094b707d4d517a0d17c20ee0d375403b6af76288b465d6c0bb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:09:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ320800168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7fa14ce6b1f848481d0f254ed0e33e3759dc78cbebf4e059d8e87f7e39ae0b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ320800174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f03ed4dac1fbf45dc6edc440eb51a3a4b2def1ce875e60b2cbaf22ffb8496a. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:08:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321100194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557ae70decdd2eb38faba249bb8b54b56a81d161b48439f903a6101abc8b8997. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321100235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1cdc3931f90a2543ed5cc720043d31f001573e44b43265798fcf6e4b88e40a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321100237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b647edcad9b3469308c22cc851a935a46dab8a843eb08da6948ae5534a3678a. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321500081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee45b245b409c3525339e5e215b5cf0b30f8e196be7aeda5d763f50263079da9. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321500085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5931b60d0f08ea5b4cbd93cd5cee9c128f2ec8cdcfa3c69bc801f92452e8c26e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321500087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3c4ce221df37610579a836cde8a94adee27e08327a2b652f0640acc854ace0. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:28:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321500088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb644ea93fe8bb2ed89b4e5ae2a8834cbd97e72b25e06db6fe76a22b5b4a3e918. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321500091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683977c8a42b0d48b50757835653a56223f3c5d3ef4d9972a561f0c7ff62d45c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60dfc013e233e4ade2a691389d7d181ebee4594a92f66b33989308012250847. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248144f8fb9619116676be79c3b27d91cf1555d33ea6c41b2ecfccc44184ff5c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321100203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116b306feb16b0e65696a1ceb11a71911883688e7adab71cd63fc480913fa071. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321100204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ca6770979084b824bc4e7c9b0ab783bbaeadfad21626fc20675ca17b960f0e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321100205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1082034a5c47c3c9e9f9ae07b8869683dd74f9ad0afe368353b7a46ff98362. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f00fd016d00bc6287f8870ffdf7c4c3eee3e23c0694007a8933f9b5cde4e46. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321100207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902fe617534fa40dff0054999d1718b82354187603f9b593b7c186b4166c7f64. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:40:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321100208.
Immer wenn ich high bin (feat. Walking Trett)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba5ea2d6bc3401d739e8a108e29e5f3cca81d4460a19bd97d76d69ebd0fdf80. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321800055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68ee6df1d7d850c0d0f2762e3258a3bbf4f16315cb32eae5f9a542996f05798. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:05:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321800058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8feb9da05046e4dc9a35119f550badfff7575b1f5c31faf9784d5951a0327757. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5abea10f084c97ab061886f51a11a008a3acfff7d3da8bf0aa35c24cdb1cc58. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321800056.
Der beste Freund des Menschen (feat. Menschenfreund88)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0c570593a2e6dd5d9321e8ea534a00d9e4673e9788bdb928e1a8134ce7c5be. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e08978a1cde3452b16be1d0d3c8e5fc698e295cb249e8638a7f17445224870. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d85d0714693cdb52a4d1454964f34a1234c954ed9f527228ffb3bc4294b6f6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f7e98234c69c84f5e70aea2358d751c2f3a6c1203ff8127049ef710c55ab4f. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd120683713205bf88facf78743b7d2aa42345fb9e6cda2541b64087c04ffb962. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ321800062.
Solang die Vögel zwitschern gibt's Musik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64589330703a0245bc86f5286c7597392236398bdb753173547a874a38239bef. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELV42301480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf349b4c80ea7c102f41598659a6a253d35035066879431b2df2f1e2fd2ea2ea2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELV42400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84ec3767e5b3019c7aa6ac00460d288eb4e16921c4c24a5a8803f6614bbba7b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELV42400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15587e5f28c7a29b9843b61a2c15408a89c687a9f7b1714fdeb4f6971b3a37b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELV42400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd5d174c75e5fefc62d3772a5bfd5d8166c772d8020001d94db55e1c93b51fb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM71303757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b03606e17716708152c5b87b21fe471d5b89c42fc54c2af11e5a5cc7b449ac. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEYF12300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dafec1ac369019a74a28772f8f0438efd0aebec9fb444e088c872b188fb67d8. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0982979bec1b9b6da625ed06a8ccb17420cca7878fb1e105025b295a84912da8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27aced997f0080b0b8e26d9bc4b44103e61fd6124b45ed5b35b75c6d6d9e2fa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDQ40700043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02f590ac344b8eb52b62d1b665f91610f6af5a43aaa216a69909ac33960ebf6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ121831003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02f590ac344b8eb52b62d1b665f91610f6af5a43aaa216a69909ac33960ebf6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ121831003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518b2a73b4608f686b1821cfa9ef2f108e3b09d61e8a41e785a496d23e55c65b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM71800656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafac5ae3de986c345c768186d294159be078d7d3e85d86f6df289c23695b5290. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM71200378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b03606e17716708152c5b87b21fe471d5b89c42fc54c2af11e5a5cc7b449ac. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEYF12300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4410e735314422b663a3166436a43d2a6054f4bf255d4c8878a39cb70c690ce4. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEDG61000003.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36e41a59343e28101d6dae4ed22951be12d77037a6e802b3a23d163c714a863. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ121831009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af890c9f5336a35b4664e440b59a535d6f0b5f108ff6144b45b98bc7c99fcf8. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812214259.