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 0xd3c89fed45af14065feb4798d0086507f7cb434d7b0bc2ac9f4bc77912c4af24. 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/b1b1046d-09f4-4acb-be0b-fd73249647b5.json and https://artists.proofprofile.net/proofs/artist/b1b1046d-09f4-4acb-be0b-fd73249647b5.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 0x2436b5a3c4125d672f780f5872bf7ce6e9b526370cfa43ce3fbc9d27d52a65ac. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:06:19Z), 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/MX2160900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ad021fe2972ec9461569e83ce68813457cb38bd3149a225049a0d373e6e516. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:10:32Z), 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/MX2160900295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc53e8980d31a0105267053262c8e98251090b538da3db357dc9cbc6ab919e0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/MX2160900302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49df2ad09fef10308ff778e0ade628c771cad23b977fe9e6cc48962dcdc2baff. 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/MX2160900577.
El ave de mi soñar: Mexican Sones Huastecos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b99bb3d7d655f967bd44b0f12fefc09e786a66d5f7bb4c384816c1b07f2c06. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:18:24Z), 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/USSF10551204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af862eab1590c9f2830ca9d12b9869c327b8e949334f7142588ef075ebbda7c. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T09:59:15Z), 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/USSF10551205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25243a390adfa40acb1c73028fb9c14534d1881580fe5b968def95e166de0a54. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USSF10551210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5652d78745307c008d45b726d063b775f2cd10559d13e573db7ceb142bc4f75. 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/USSF10551211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa6ce726edbf65eafdbe0b95a7cad84dd043dae82d559d2282852202a5694d2. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:36:15Z), 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/QM6DC1745653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451bd1f8d303b3c5e2cb4c0a64c82c457b43e214612095add062463641cbb95d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:53:16Z), 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/QM6DC1745656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bdc124d44b532bbfac143f3d6ad2e53effebf9bb88695b0dc24b0e4c41b568. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QM6DC1745661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451bd1f8d303b3c5e2cb4c0a64c82c457b43e214612095add062463641cbb95d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QM6DC1745656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bdc124d44b532bbfac143f3d6ad2e53effebf9bb88695b0dc24b0e4c41b568. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QM6DC1745661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb7c37ef427d6ee7974ce98b103027e489f01050579496f5bad401f0d250c68. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QM6DC1745961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb7c37ef427d6ee7974ce98b103027e489f01050579496f5bad401f0d250c68. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QM6DC1745961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e82af06cd9f2c986b82a8f971aedf95a128675b81b476d098a4db8f18d8b954. 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/QM6DC1745962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d63fa82a52c043244492e13413d03e4732460c53af7b8f2e0cb9b62a4f369bc. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/QM6DC1745720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45ff9b90e3e3f825d79c6bbee7fd6cc01b8e6feb72948c84c2dbc4cae04710c. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/QM6DC1745722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86a52c183ddbd04626051853d59b42e176c379b8279a7e522d2c7336767bae1. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QM6DC1745723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3076e57b49646bd4131eb7b7269ec5ce8d561ef40e6a56cbf58e1000b63cb07. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM6DC1745725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44d3179c415a699d5d8d0f22eb3b4146a26ef47f4b0a7deeb8a5341b82d31a6. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/QM6DC1745726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4068ca7feba6da529f7654f17c3ed9c4944aa5cebc1d72e1786141801f72044. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QM6DC1745728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca51e83270e5dd2ac4e96ffed12b16c6e168f878ae36f2e74ecdc24269220faf. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:58:18Z), 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/QM6DC1745733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d63fa82a52c043244492e13413d03e4732460c53af7b8f2e0cb9b62a4f369bc. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM6DC1745720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45ff9b90e3e3f825d79c6bbee7fd6cc01b8e6feb72948c84c2dbc4cae04710c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:59:36Z), 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/QM6DC1745722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86a52c183ddbd04626051853d59b42e176c379b8279a7e522d2c7336767bae1. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QM6DC1745723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3076e57b49646bd4131eb7b7269ec5ce8d561ef40e6a56cbf58e1000b63cb07. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM6DC1745725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44d3179c415a699d5d8d0f22eb3b4146a26ef47f4b0a7deeb8a5341b82d31a6. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM6DC1745726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4068ca7feba6da529f7654f17c3ed9c4944aa5cebc1d72e1786141801f72044. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM6DC1745728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca51e83270e5dd2ac4e96ffed12b16c6e168f878ae36f2e74ecdc24269220faf. 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/QM6DC1745733.