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 0xbdb4ca7eea9b7bbf3ac3a789898424bd0e172dd087f6cbead91c0517eb3e78d7. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/363dcf13-6571-42ff-97bf-acec65dca552.json and https://artists.proofprofile.net/proofs/artist/363dcf13-6571-42ff-97bf-acec65dca552.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 0xa635416d22787bcf1d952e45268b1b03a4aca9eec8b13880f43b1abe64813396. 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/USCGH1975445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ebee2b53f1d794b0cc43da2ebdc577943ac4e8836ccd78aad00ac0e1557b9f. 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/USCGH1975446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64998733f74e15cda23217b62090f8129194ae1257cc120d35cf6591889eaf26. 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/USCGH1975447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8b06b706cb2e9c19d6a42dfe2190e7afabdf8115ec8fce46e08d7ba18c00c0. 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/USCGH1975449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1a4c1975b498f41d1304e3cb80faa59b6ee85173067d6d819882db794f7bdc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USCGH1975450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2211b7fe7c6661379a86bf51601e0f48dc8d9728e63d014f269c964311143e. 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/USCGH1975451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888f081ca1a4476cd9ae502177f4a502b678b40864292cd61cab5f525262782e. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USCGH1975452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dae651d2050a8dd728ed4cf1943a116da0de7ff26e0bb2680418ea2da0bb206. 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/USCGH1975453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7938fa24f1e2f17927f692925af3fc0e6a8d5d2be76197e610b8e762ec560b. 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/USHM21759425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd692b7de93208ac1ee7f25dec25f37f19799110116b7a719d54b90b29c7a926f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USHM21759426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6741ff83acaf7093f05ee2c604f0ac9d07a5209dc0a5db9f467837ba384cfc. 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/USHM21759430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ba5e828fdd8aeb3bc732a861719ecd43e2a20f28a95217a319404962988f7b. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USHM21759432.
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 0x42a0a8c11c04278603858da03f100a09e13185e6e22d5fd5e73172bcee85d5fa. 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/USHM21791915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed217584bc5337e75245e40252bb6ecfa3e1929a7e44b85b6515e17bebf4e70. 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/USHM21791916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cd98fb018692e57f35b602e68f91d27e28b551f3f46261bc12a7707b463d7c. 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/USHM21791917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c7cbbbd561ac805c3a11ab9855a327e2bd0b42683ddbc8fd9c164a430830fa. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM21791918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde85655173ec57de123fbccf21053d12036cea4aea7efa4b7f3a8893f6769008. 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/USHM21791920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecaa75717a97f2973b6ac86250ef3d61c1cf7a45fc4a5a7d17e1d00bf44f3480. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM21791921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5445b6efb2741ee5b5a2f7182f4b2b8d7d64cee9b6fe9841106332e99e81ddaa. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM21791922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ef6879b3447169da64a55f8e4374877da269e07446c428654621b0399f29b4. 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/USHM21791924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393f4b380fbe1ca15f78823e7bfb91dafa36cc5ea506582c631a3f96fded895b. 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/USHM21791926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc862a2a7dcb650e5a691c017aa8b945ec50f127d9da1e1b9667afc2d23fe2610. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USHM21791919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56163b3066fd7ed6e6a52e1915ebed6520b5d88b1a678713bc22e0eeb2c03947. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USHM21791923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04b13c91a92b3c87dcb54a136fe946c87133152951fc46592c56b2c93b56660. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USHM21791925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d274579baf6fbb1792abfdfde3811107f91cdaee59c60e3fea1c157ae060ee6. 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/USL4R2375982.
...y Como Dice Giles! (Tributo a los Giles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499aed0e5137f72d7d378bf5d679b7130a4584c1ce5369983e9bbdb4759c3fae. 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/MXD782002450.