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 0xa71e6f1ace17b70b727fc382b0426b0ea970569e59a8ef3153173ed1ec91e3b5. 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/4f8aef9a-b6a0-4a86-a2d7-d570756cf225.json and https://artists.proofprofile.net/proofs/artist/4f8aef9a-b6a0-4a86-a2d7-d570756cf225.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 0x59b9aecc34acdab2dcfc5bf8b71290123878e396985e2dac7a732d635d2e11a5. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/ES29B2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7f0bf3a0afac8e73a253aa43a4a861a0f111dd90d87f476c68916ab76f7e2b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES29B2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a038c613bc7d847469cbeeeff749fe2ea01e7d8d88f9a4861dfc5d87c343186. 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/ES29B2100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa891876b1281a90f83abd67062d57c8bdaaf450fc4faddd83ed7e2c3ce14d6b4. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/ES29B2200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5946774a00f44b4b987434d0dc796bb413164b19840333b6c70ca3657b5942c8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES29B2300052.
steak tar tar (PERARNAU IV & Zahara remix)
steak tar tar - PERARNAU IV & Zahara remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e2d365792a3d0e9d38635d36c5e0a51028d543eaeb8f60930f3270b941809b. 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/ES29B2300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1700461168e40272279c7312a11eee7a33881ee36280a20b2823e08329458592. 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/ES29B2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261407083062dff334ffe79c2782e2873e7f6ead5808613927d5dbb6ede52eb3. 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/ES71G2500589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ed5923625e3ef826554278a100e372ffec0e96b15daf3e17c5149c622650d8. 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/ES71G2500590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8d11ce7cbf04aa4dabbd6d6830e8a9c42b504fbb7b41a61e419f8c9815816f. 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/ES71G2500595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5932095d8de126f46a8c1c30335fd2439db7ff9ebc25c780c0a2373f78505519. 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/ES71G2500591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6609195e83c5817720595f98fe6ccdd84e71c19130d353fccf986f77d8b063df. 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/ES71G2500594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1479f44765289358c9bfc33aef9e4d27d0d3641182adf4364038b40f7133b4c7. 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/ES71G2500593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25407c83f357619ffc3773930acd666f03d6eb9c2e1754a9d722da6570fac19f. 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/ES71G2500592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447078093a15489fddba93a27fb474a98437eac183b838dd9b38e094228c2e08. 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/ES71G2500596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475d49a9d111fbce95a1b3a3cf2b876fb4734fd3faa2a6f49246693f1e4119ca. 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/ES71G2500597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15b46468d817357f41e05390f599206f8b4870ddf432f4fea0692f0b9c5ab80. 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/ES71G2500598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f9f3c5427187a9897523aa01024b90a69f8f360b3c46cdfd71654089c07471. 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/ES71G2500599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5bb133175ef193ab4b7b09c21e253986554c22b167ea3ddcc4faa451af54d7. 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/ES71G2500601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8fefdf84d962c83a8d05117b27c7daf2e163867b2567da2f2133963a5e4279. 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/ES71G2500600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261407083062dff334ffe79c2782e2873e7f6ead5808613927d5dbb6ede52eb3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2500589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ed5923625e3ef826554278a100e372ffec0e96b15daf3e17c5149c622650d8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2500590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8d11ce7cbf04aa4dabbd6d6830e8a9c42b504fbb7b41a61e419f8c9815816f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2500595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5932095d8de126f46a8c1c30335fd2439db7ff9ebc25c780c0a2373f78505519. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2500591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6609195e83c5817720595f98fe6ccdd84e71c19130d353fccf986f77d8b063df. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2500594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1479f44765289358c9bfc33aef9e4d27d0d3641182adf4364038b40f7133b4c7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2500593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25407c83f357619ffc3773930acd666f03d6eb9c2e1754a9d722da6570fac19f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2500592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447078093a15489fddba93a27fb474a98437eac183b838dd9b38e094228c2e08. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2500596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475d49a9d111fbce95a1b3a3cf2b876fb4734fd3faa2a6f49246693f1e4119ca. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2500597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15b46468d817357f41e05390f599206f8b4870ddf432f4fea0692f0b9c5ab80. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2500598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5bb133175ef193ab4b7b09c21e253986554c22b167ea3ddcc4faa451af54d7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2500601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8fefdf84d962c83a8d05117b27c7daf2e163867b2567da2f2133963a5e4279. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2500600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe23f639f764eb2c84af912cddbf92874e7dab959eee54f2e1c3ecb4d34dedc9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2057968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6df74845f273ce9226a31a5879585be80a50c24e70f51df6fd1e372cc57dcc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES6642100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0767cced0d0ab8c8eb779939c3b7d6f0dfb4bba4e0ca1fdc39bb51bb612c7a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES5702400137.