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 0xa32e887bac47db14b64a61de9bc989ff22cd1dfcb316244556ff438e11dee1b6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4de8f673-d0bb-4e03-9344-e9f3c2d161a5.json and https://artists.proofprofile.net/proofs/artist/4de8f673-d0bb-4e03-9344-e9f3c2d161a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Por Ti Chiquitita Tomaré Hasta Que Me Muera
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 0xbec0a9125b1b2edc95456d69627b90f8034e190a55fc54d6473d146081d53f06. 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/SE6SA2117159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd084cb7d4f5dd912fdca21c5ff6090d45278a160e31813368d288586ef97a2a0. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:01:02Z), 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/SE6SA2212342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec71e46b337c9db66d0c5e6f5a226caa2801f368f44a0218a6b6d2ad24798fe. 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/SE6SA2212344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62565a9a4ffcc090fb85d6c69986306643d9f07b51217998839a69ba81311ff7. 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/SE6SA2212345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e79d071034055be5208f8a909c8e54f12a88a718b1ffb57d84a7fc60593e771. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/SE6SA2212348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff80658680a7163abd40fd71d49ec8c4fd163d927f0393fcebdef2ede0d44e7. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:58:45Z), 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/SE6XW2208288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162aed668055aa16a957bbdc934eb1b2a1a4ba9ec4abc2c685e1aac1ceeb4c01. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ARC571702722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9548d09bdfd740bf412406d69ee5545c8f09f878ba5386585a18955bf7b01938. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/ARC571702729.
Por Ti Chiquitita Tomare Hasta Que Me Muera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10efaac6bd28b70e3c2edd09aba7f15eb54a8a0be42262084f4e74fbe7e83f9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:32:54Z), 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/ARC571901035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e307237573463e890cd109258f657741fbc6e58d2936e627d37324d72be0397. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/ARC571901037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7909b96ebd1b9e1e3ee55b76e35ee545962aa42b2225c9aa01381606c5a38f0a. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/ARC571901040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edbdf3c199a9a4af4720d19c5e272f0bda5a6c7f1e6347a8469458722fe1f39. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/ARC571800846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5c93ac736e7c84aafd4f6ad80913440732d3a7181c16db76193746d78eee7b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:13:36Z), 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/ARC571800849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8985b3cdc945a740b7ee9c49d3340cc39499133bd5fb748294144838b67e0fe0. 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/ARC571800851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9f351031c914d780f8ea19c21beb7fd285039c8e2835478b3ff2b129d04ae3. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:52:36Z), 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/ARC571800858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354052238bd6408a222d46a232c2051cc78555c9e489aadab6acab72d533e62a. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:30:38Z), 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/ARC571800860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e53229fe500230be9135ff1dbfe16d1595e0762f1d9e155b9c9d3a41b107d5e. 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/SE5BU2596517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8292dd5e44cf4d43c31f7409f9d337352301f82ec85efa737ad68aac081aca6e. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/SE6XY2504944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7995c2e5309652916215bf21626adfd474d5770e1383af01534dab03ae7abcb4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SE6XY2518697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cec2c5a76443295562fed951334ef3a8123d7db48e801426732388a92fb2327. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:33:37Z), 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/SE6XY2539574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb77e46636ef6298d4dcbd5837c21dc2fef153445730d1c40b07a8a52cb32de. 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/SE6XY2539577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97df2924c63288961c2a5c065d8539c40ea8b5bf86718bab981b34c5a09a95c1. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:22:13Z), 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/SE6XY2539578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4d470f6e22b1e88073226c02bbcae321de5823ee74a44c4943d508efb667b1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SE6XX2500673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90dc53d162a2cb8ee4228fa81e28165c82e8d049afa8bd31641f7a7c7827a97. 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/SE6XX2557433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf3cffdb0e498ddfadef3ab2dfbed7831fb958b21c691c6b653a18c3460280f. 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/SE6XX2557438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc415c5b4880f0e6b64b7325074ef12f8a98f44d01f56ee54c37c3270da343b03. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/SE6I32583745.