1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x6ba2a33d0e43608ba3af2c4f30f5a782cb8305187648b7b6b560e9a5801c273d. 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/cc79f2b3-df87-4742-81ba-d2ed803b3443.json and https://artists.proofprofile.net/proofs/artist/cc79f2b3-df87-4742-81ba-d2ed803b3443.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 → block OTSBitcoinBlock must exist at that height 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 0x009afa1442892bf696be92a3ef07cee264f0d8bc1465c81b23e1fb1f0075b80c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:09:14Z), 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/CH2180900088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bd86bd04a4f30f86a593af51e638b4943ded21e5768cd3df3d6b9bca626ce4. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/CH2181300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8feb83a4c890d8bc3cc2daefe29340f21268021d0f17f728d1741619f76e6b7d. 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/CH2181300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50afac77cb7153eaced7620e180ff2a4d98bff4ac1259db9c6969b4061b38ee5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CH2181500100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014b91d7e40d23c5fda8802439f686079f05e3b8c27ee33c2ba209131e96d944. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/CH2181300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f1143b37cd045f124e0c325403d9bbc0249f0cbccf054e93ef30bec25c79cc. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DEE861700773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb22f1e4fda6874ee10abef058a514a2756e021bf96e73eefdc1cf6830b8b8a3. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEE861700775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5882bbbcbcdf0f768c7266bf15b40a2817bee9b9c9d29a91217c78c34cc9c3df. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/DEE861700777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde99d037ffb394910e60b666dfb3ed0852e62918a7c97a192b6c84ef07204a27. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/DEE861700776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f7ccd6433e51f6b3bd89ee2b6aa33207196af1f492f97a4da344c29ae50a20. 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/CH4061901587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5e912c3d9136c5b33be09d6111377321ecb46ba658c70296337d23ce14d2b5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:58:39Z), 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/CH4061901589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6327d950335c396b614ae71113efd10ed4e29c7e0dd8a897639bb37325dcea7. 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/CH4061901590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6a17ba144e01d32e3067066b0464f71b5e0ae9c31bacaddf8e2ebc85b74317. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CH4061901592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39e36fcd4e963683e4be1dd8d49e1a0f71f35dbb76712df18aaec16171ab4f5. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/CH4061901593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5987791a359e5ae93b2db8a67532254d07c3d7438397cd9a57353cea10f4b0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CH4061901595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecd011cb433d96f2f94d27731cba7fa801c7a14cfeaca15ba9c2b6f3e0d6ff6. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CH4061901601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979f3c3ce9782fa3e6a95b6e823c591acf2d71af64995d2fb18d3aecafecd436. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CH4061901618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74eae4d3b2d306f4777bd06bf5fd532562b8fbfcb0d756131252a7dc70504aff. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/CH4061901624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95067f34d963880b19ed09e082fa01280dbbfa6bdd6abd475b016898709586e7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CH4061901630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ab3581b34d248ea932b3c7f50457896942d6e3503a8ee92f37fd2ce61034f4. 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/CH4061901642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c74f94938c86e23ab94bcb1b85dca99e0193312f8b6afadd85cca6868225bb1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CH4061901648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa135b810cc37434c649ce356d05d021e4d36b33d975001d4a6fd4b50384f61ea. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/CH4061901664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddcd23f314ec187bb1aa37bd10b403b0052e46618349c1cc7efcf0607422faa. 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/CH4062301725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288996efdcbc78c0aa3363dac0796c31e0732aab569545ccb4bcb07deeca3ed8. 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/CH4062401763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb5311b00570d33ca6591ffc147fb3d9532cd01afcd501222c326e535acd31d. 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/CH4062401749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950756fcadb1796e5aa37cb16ee4416a4842606508d2cf5c7da2e16f7abc20d0. 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/CH4062401764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb5311b00570d33ca6591ffc147fb3d9532cd01afcd501222c326e535acd31d. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CH4062401749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659a16cfc5f9aa51e9c1d29cd0d6d6c4cccd968f0bd41b7530635504bc9c8dfc. 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/CH4062501765.
Victoria Line - DJ Antoine vs Mad Mark 2k24 Remix
Victoria Line (DJ Antoine vs Mad Mark 2k24 Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bac5bf5fb7757f3f788886a86e0d54ae6ee4c5941e17b78e9caf03f2a7f5c4. 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/CH4882300601.