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 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 0xeedb6fad0e19038b6010850f056f2e7d04cfc720a22a54b14f9bdc844aab8b65. 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/4d3af795-b9e4-4386-a007-092b2d77d91b.json and https://artists.proofprofile.net/proofs/artist/4d3af795-b9e4-4386-a007-092b2d77d91b.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 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 0xc8aab279869e51a6693384dc5812122b8674fff421aa76fb0b630fc3cfa0f507. 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/USDBB0605980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5239c079915e94f2e7d890d260dbeaa9399d614ec1a8a40909f5d266d33d6b39. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USDBB0609246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f7ec27145374ae717bf1ae78c4b8afa512367b4af78cab9ee70894e4ceeb88. 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/USDBB0608706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18fd647182e4624394016afd5dff7b855899219171046d967c165491b05f557. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/USDBB0610159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5753ebc4648ce29c08748984fa2c05f252a3130e5a6080106d0fff4b5a906c7. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/USZZR0810840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9432cbdbe60a88d67ceb9ed931f035ab75a39649302a5781d9ad9c3c239e09. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/USZZR0810843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3975c96a10a5d7fd83277747d799ac5d05399dab01b26d81e796c09d37715cef. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USZZR0810172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe764aef408cddcd73e040aa0053326d4a6ca9bf81bbd1d21041362e0b0138979. 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/USZZR0810173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa872835a1916a3f94d6bdbdf0c2b0299b1625ff654efacf5179b1077737924f3. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/USZZR0810174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46acdb6dbfa0972a2da1e7c41abb3aad97e973996934d7ec57f10d3db8c0bfc7. 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/USZZR0810176.
Esta es la manera de expresar mi sentimiento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7446538671814d8a05fc27d1b62bfa671f08bc7b02998f68feeaccb82ebfdf09. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USZZR0910709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114339278df35570a2984553cf1b667bb7f70df7feccbcaa7bd644ad8b053566. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USZZR0910712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6aaf4676b6f4f756cbdae2d34a2afeba7638d06981a862b86db1f77214fb0c0. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/USZZR0910714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ed9bf752256a74c743c50bcb0ee654d3eca42ffae8592f92760609a946069b. 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/USZZR0910717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1f538c1b52e25c4243f509e2a7be56d828807779456fbcb2bba4d87dbcdad8. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/USZZR0910718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c67b52972452e65928028bdc20a12fb4f104086de5fde974ea38cc72b773cb9. 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/USZZR0810119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15407eb6fbce0951504c36bdafbbfb1ff8dda1900a9cb3d74e80dec9a8c5e07. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/COFC19743104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeebb6ba0639d96e5f1c632c4c66866b34d45710d1126caeecfe5a79eb0fa271. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/COFC19743106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271d0979a334f5e40e59ebbd51b49f8f776f2f500c50cd609bd96c6a3cccafa3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/COFC18233702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855e027b4ce86a1cb1605686830a59da3b518a7544c5b646c1b132772667d032. 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/COFC18233706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d0f01571c0ea305ff8db4b790c5e800af2798330e2573397567a1905e1fa8e. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/COFC18233707.
The House That Al Built: The Alegre Records Story 1957 - 1973
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fef754f271f098cd0e31884e2418d9a3686db12e767e008e82ad549e11753e8. 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/USDBB0607769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753671d28ac7d1dbe9f9ae8facef9b21e6793dc034af1bedf398176d54d26bdd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM7281747241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0658be5f2dc692ce3613733740543d721f0bcc3aa34b7f17e32f4d335f3e7057. 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/FR6V81521250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d9b7dad870d92e9896d904c3ad23df56abdc7b67f0688622d3e0d3dfc7f77a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCADP1826642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e76da565c38281a3bd22cf18de958145542996cf64c59e11d89490ded70dc8f. 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/TCAJA2443196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c43581de1fc3860202b2a54928a6a261d394eefeda20ae2ba54413e58ef4fbe. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QMHUY1453790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fef754f271f098cd0e31884e2418d9a3686db12e767e008e82ad549e11753e8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USDBB0607769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3435fc44f4f3edae1948b6403181b27ba08d5ee22fd1722da58eb76712a02bf. 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/QM4TX1814804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a663a49d4812b0122f4945b05a02242ea7a43873f708c7b13ce6ed25f8440f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMDA72130250.