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 0x7d84b6d4418ed8f094c202173cbee531064227837b44546eb660dc7db576143a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be21ff7e-d1c9-4e07-919f-f7145ec1877e.json and https://artists.proofprofile.net/proofs/artist/be21ff7e-d1c9-4e07-919f-f7145ec1877e.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 0xbe3d3efb52a69085537008f689e2b213edf20d6aa775324aaec1c3dae16a7e44. 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/QZFYX2076815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bcd09e9bc071b90a88d64acbcab984e6f3f2c3b69923b0919d69b47dfb41e9. 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/ES71G2014629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5207dd95e422887293d251e5d64b44d0e09075343e1833aed5d2ff183fec4160. 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/ES71G2018480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fd37f28c68a2b17287d7ab2c1b9cb5eb11ef54d3763370e060dc269ec094d3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:24:00Z), 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/ES71G2024187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262d1591af743c4a667f3ff2d873ee1b9dfc0fa2006841b12f55c360c9cc0ece. 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/ES71G2034281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71911aea270ae8aff3d2405f7658871da0306b19c54784464c60c01d9a0d06bb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES71G2038072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5f4b69a017fe8ea924556dd949130fb3108ec2264cbdf1e665207384c4adeb. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:24:15Z), 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/ES71G2060792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292794a7f89324af30a88d6ed4c67d23afb23e3b24212eb2926e608f3d47be70. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ES71G2123916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e9a4dfad89003798fdd9f764da70a9b9e9273210c20116dfd22536cb540ebd. 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/ES71G2142698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f390d2ccca8bead30785475ff2ad2f15f694e48cc562c989e9e3718145cc8d5. 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/ES71G2146833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc381b192312c38e980a932633548dd0855ef2d7b327e4f45e669d5e135961e00. 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/ES71G2205804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866a615b99b6f03361a9d8a4b5b7988c8d00e1e71a6d6c0aa0f102bb41a73747. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES71G2205531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f246d55165cfb103ddfcda51f727eda07cd66371c258f0c31c177fb2fc9e92c. 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/ES71G2155200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072f98b1a9a7397989b5c2db09e473b4bf31480e7e7e5966426ef617933cf493. 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/ES71G2150324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f21e8f1f10649aea6eee631c96fdeecca4d0bf702f44b6d21ed9a8808ca576. 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/ES71G2205805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f3ab2437664d224f2136d27951e6aea60a9fdcc51f893c0bc1ed839727aef5. 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/ES71G2205806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c95469a6a094a7af498312491f1f43578ca19f3c3ee6f56c1a6be0067f1f16. 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/ES71G2205807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e9419feaeafa2d6deba2aec23218d9d5f5fce5d54d88cda51239c6c0acb342. 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/ES71G2205808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3c25097561ccd4af399fdc4a8f2b5da80affe05a62afacf4e061ffb674bc2a. 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/ES71G2219683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaf259d1b1bcd2a12f6b77b9499998a22e49ffc41fa6a294e6eb6fe446e0213. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ES71G2235270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee15adbcd178a450f66b22abcfd5302bc8ad41c459063deaeee25cf078ef35f. 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/ES71G2300970.
En mi lugar - Día Internacional de la Mujer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe847c18283e214b68ff79108b37c95c31941a3f625e149dad1b04e8e69fac6b9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TX2304791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaf259d1b1bcd2a12f6b77b9499998a22e49ffc41fa6a294e6eb6fe446e0213. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES71G2235270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee15adbcd178a450f66b22abcfd5302bc8ad41c459063deaeee25cf078ef35f. 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/ES71G2300970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee816d0fe7a8e74c32299e02b108d8f6e7bcf68556288e50bb32f76612a2bf47. 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/ES71G2306881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36853189d8d59fb39b1732e8e5a867e8c0b0b9269d5da7d5d35eca100628c6d. 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/ES71G2306882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9109d36752a94da478163fe1f2e50ab2182a1142fed9be8738d10a89e03624. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/ES71G2315757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e803ed708cb871bf3651904dd2ca3ab9bf45fe1a1509eeb309a9633caa9778. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:05:59Z), 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/ES71G2330232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6d1dfe33207336556b6121c13e482723e81b13abdfe0f11af6ab147eda927b. 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/FRX452448210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741d0dcb63b97124fe65c4e2f7d84f98152eaa59f3cd2765f321be88f593cfc9. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DGA0L2471823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a6dadb820995c45c72e73472a04e08177e1c0be309b2b7005b342130eebe4a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DGA0L2471827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269d68f7820ed53ff971d718b47cc010179941f47fb534d6170454b8335bb9cf. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:55:13Z), 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/DGA0L2471828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f90bc1c23fb16e59c60f7cd74a3de90fb424cd950af0732c73ccc7adbf6b2aa. 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/DGA0L2471829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d61625ea5c552c656ec89b46715ff73c45b0b92f54336df9f92ce01d80a53f0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ES71G2324597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbb6464e3e53df625df6b868a4a92426ba1b7c1a7a8ce102bf17952eccf9524. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM6P42219218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24c0176bcb8e7937e701e2cb96a48f60b3032e83842164adf1f9cc1e41c86b0. 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/ES71G2238234.