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 0x2741686ee4e566db2bf438e4f7f0791f7746af7f54ec5b1931275edbe0c1c29b. 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/d428b2b3-c37f-4e6b-ae94-dedf7cc6e274.json and https://artists.proofprofile.net/proofs/artist/d428b2b3-c37f-4e6b-ae94-dedf7cc6e274.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 0x646b3fb6f2b9cc8d7638228aa66b6b3f6a59d29b8edcf2e46ad59b426614d3b9. 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/TCAFG2011261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4563ac15505a1e19ef0a4c3a6ccf4e356f19c4b5e4032725ba387f911a8d00. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USA2P2112523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519c80299cd3db3905d71279d72d1c1542039a045d04dd4e243896f0563ac43e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USA2P2112526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369bf9caaf459b788bdf779768ae779809aab968968a7ff8a57526782c2c5554. 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/USA2P2112530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95da6d8aedd5ff2faea251609755f9d109a1cb2b449c5832f93218ab8951944. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:24:42Z), 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/USA2P2112525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ac76dfa5778479b4b15123b018e42af91e4bda976350a72e500e6fd9af20bb. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USA2P2112528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53679fe59bf3eb1e56e099a740412f9ec6ee74ea65005846eb169af294d7cf55. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:57:41Z), 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/USA2P2112522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249f381d884be217d01ab6c6f48ac151462e8eb0121e85f1ef4ea968669e26d8. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/USA2P2112521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75a94ade0782e44aad5c59c4b8980ea0f2077b2541a4d7158b44cc5a76e9bd3. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:02:05Z), 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/TCAFT2181691.
We Must Endure Our Thoughts All Night, Until
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8a76b6df5bd81a25882f986f4a3ca6642877fe391310a379f7d5c5d8881703. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAFT2181695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280ef5c8c2c3a143ad87af51565e24ea167600de759b03b56d75724ce1d48127. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAFT2181697.
The Only Emperor Is the Emperor of Ice Cream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15810fd87b8391ef1b94563f6864c1236ef94e6bc9cd2b0627d4e24308da821b. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:06:14Z), 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/TCAFT2181705.
A Part of the Labor and a Part of the Pain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81486127155a6ced65f99e679df9fd0dea263f6c7e5ff9e5da9af560c6350efa. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:57:05Z), 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/TCAFT2181715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd9bcd3063e400aa68e0077fb091b5ebd97d8823173119ee89febc886f1c459. 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/TCAFT2181719.
Who Still Feels Irrational Things Within Her
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf49d19da83f06b1200f3b543afc2075acae130e48b6a65145ba5ade17360a3a. 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/TCAFT2181726.
Today the Mind Is Not Part of the Weather
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43428cdb4334c3606b3d4079c238a7dd864a38f64675bb2ff9f31193ee5f017. 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/TCAFT2181729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bfc335c4fc21ee7e10b23f3c6232e2ee2920a6f2df83cfd2b118122de3b2b1. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/USA2P2343232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd073d8d091960c349a4cf5e67e6e402d5c79f13cde672745b14b4bf84ee10e5. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:29:43Z), 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/USA2P2343233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086af308962d441c5f6e6fb6432f64092541c2d54f0a7b99c52f7a8b981a2372. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:40:59Z), 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/USA2P2343234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8d248b0896d4fe6b24f009efeac56b158266135704cda66f3dc65aff5660a9. 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/USA2P2343235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9e64d0623523645d9040baff82b20572db373ea1d2d776209736182f46ad11. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US6PQ2500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df661b619145036cbf28eb0e5e382e286ebec720541aaf3ea4d53019f71e016. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/US6PQ2500086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae3c606762dd1d5dd2b3ec258cb88bfe8a1b7eff7bde646818d1aa36b211f8c. 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/QZNWV2194062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee67d5a71900b4807fd3cc09f850376dffd8f850b0fdc80d933cf08ac9d069e. 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/QZNWV2194063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25a3d90ea3662ad28c6a56a0540211ed57144bd3077cba6556efddd23ec1983. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USA2B1801110.
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 0x482c0222b23d350287ecdf3e66bdf9089fdc50f999406abe585cbcb159a821dc. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZNWV2194059.
The Flowers Above You Are Blooming This Time Of Year
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61d9d693b7b021e75f5b0dac0f4002329d6c9bb2c03557e488054e92f677ed1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZNWV2194061.
A Little Night Music: Aural Apparitions from the Geographic North
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f075d2fccbf2fa87094ce551c52d3a517becb86c295b43e123fb5c30b273362. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USA2P2034563.