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 0x23fd3718aec7ae89d80efc78181b25ce736108dbf3d6f07f500d3abb27503256. 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/9d75699c-37c6-4e93-9e20-482a2ea10cdb.json and https://artists.proofprofile.net/proofs/artist/9d75699c-37c6-4e93-9e20-482a2ea10cdb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Wrong Tonality Carolers: Deck the Halls / O Come O Come Emmanuel / Silent Night / God Rest Ye Merry Gentlemen / the First Nowell / We Three Kings / What Child Is This? / We Wish You a Merry Christmas
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 0x21c8bec79f205bf994df6c2d9dd610bfcf08b1a1c89c024c781b8d3c0594b6f9. 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/USHM22263824.
Britney Shanty Cycle: Baby One More Time
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc836686340fd4a4bbebe9b3c6606640b5a936c4d57ba0632f92fb4740576261. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USHM92243784.
Britney Shanty Cycle: Oops!... I Did It Again
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b998dbda458c5c0d9c37b1cd5909deafb99b07d3450d2934bab44798179b9a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USHM92243786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872223ccf3109714d927b3f98f2e02531e7986391ead1a4a543f108aa2ce3c42. 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/USHM92243790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d34726cd784a24083c02cd5d8977ad8cae751c0722c2c9f95bcdfde158ae65. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:32:45Z), 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/USHM92243793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b4bbba9e44588fc0eb9fc933dee4569efd939fb2862dc4a879b1653214cd35. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USHM92243795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640f65a89529ad39965705b189626987ce64d762a4db760dfff0a1773b42d647. 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/USHM92243796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12423e2a75694a3900c65d3233155417a9f72df5acfea50ff9f6b487ba871765. 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/USHM92243799.
...Baby One More Time - Britney Shanty Cycle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc836686340fd4a4bbebe9b3c6606640b5a936c4d57ba0632f92fb4740576261. 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/USHM92243784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872223ccf3109714d927b3f98f2e02531e7986391ead1a4a543f108aa2ce3c42. 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/USHM92243790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b4bbba9e44588fc0eb9fc933dee4569efd939fb2862dc4a879b1653214cd35. 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/USHM92243795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640f65a89529ad39965705b189626987ce64d762a4db760dfff0a1773b42d647. 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/USHM92243796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2050829a6b3529e720bd68763be9508046cb591947dae5b97541075b3b992c2c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USHM92243798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12423e2a75694a3900c65d3233155417a9f72df5acfea50ff9f6b487ba871765. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USHM92243799.
S.I.M.P. (Squirrels in My Pants) [Shanty]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86562e711abcdd9757e15030f14c9fea5fa972f1c0997059a60e9a1a22f724a. 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/USMH92318814.
There's a Platypus Controlling Me Shanty
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a345f126fd044f97dbefc5c64c11f8b59ba24f564fd69a6eee78b7a54fc0e4. 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/USHM22461763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823468ff3f8abb9fc76bd45487799598fb7eb9e2345d351dd5adee0676b904d3. 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/USHM22461785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf560c0c0fd608266ea6a230dff9820a83239211c3820ae53a714057ee9514078. 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/QZWDE2538754.