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 0x2e0adaf71b7380556cb591f2eebc13c74f4a0ae1e798b8d1ee1c31d48d54a098. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64ab1704-7c78-4bf1-a618-edd3e2563f5f.json and https://artists.proofprofile.net/proofs/artist/64ab1704-7c78-4bf1-a618-edd3e2563f5f.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 0x212e65aeca71dbd830e2f57b9780bac8e41b795d1e8cbe8e12173bfd772e8380. 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/UYG442300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ee1d5f7f25ea05e431f28d25e041af3993bea3fde27f66f9b172fb8b9b7d5d. 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/UYG442300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70008e2d8b692757ba97c393144c292fb62c5cd0409fbc6c6937ec8e62bdba3b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBMJG1803150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3677cf4613f2a9f33091b15e18bbbe52d85ebb16c560d45ed978d089173db3. 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/GBMJG1803151.
Them Belly Full (But We Hungry) - Pulmones- Eduardo Yaguno Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b91693812b033ef15558fea282f1395fa46e47230b030f15175b1a6f5dceb7. 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/GBMJG1803152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b69dfaf4df1107b7c46d725785919731ecac9b15ea0f2d1f3adb1bb001726a6. 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/GBMJG1803154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93a32541117343b3923f0a941638e5341b2ed142b9c638c201fa009af6fc785. 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/GBMJG1803158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5ce3e7f96375b0f0af8193c05c131299ad02e1e46b1e895760f2e7f56c3b26. 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/GBMJG1803159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fc7733b7c51e1e5741c9a7b6932a3789d10f2908b761cb59d65c47084878dc. 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/GBMJG1803160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639d85189b79e67adaf24b1ea7236a104d55a3856f321a2b7ab9e644b2aeb0f6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBMJG1803161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd6a9a12f8ae632b435e6aa08e7c4996326b1eb2f89392e298c63de41e726bf. 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/GBMJG1803153.
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 0x6ae222ec0f58278bc7635eb38d45d52d5d0c0b87d90466b7e87730314e36fafa. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBMJG1803155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3c1edd1435e956a6adaed4705c8b0fb322437f3441afd485e5b0e41aa4b337. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBMJG1803156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1361e1fd1f1ab9b3b4a4dac8514abb3fa77fcb457314839581e5ccb22d589156. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBMJG1803157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920e610683826936a54301a373511ae18546e07f606733bb9cc5a8398697b8c5. 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/GBMJG1803162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc70253691978c2d13d62e5e6d053321c4996e721de537772b4b54da9383c337. 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/GBMJG1602441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c279a5bce1c74c7b09c963025c60d737f39abea3e98e27a63adf4d55be363d1. 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/GBMJG1602442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd905463bec72053a61909ab1c471291dfdf5ce7fce7a124aa655034a2add03ca. 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/GBMJG1602447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56372a4268b6221087adb14a4cb18a6be373a54c0497da88a83a8c503df4ee2. 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/GBMJG1602449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf317dee4e9e11bf81e88ca8f696027e9c3ca4afde9906011bb6529e89c7678b7. 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/GBMJG1602450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf35a3e228847e41a05835b6a8ac961f5593423989a03927a16f8735a1a3f34d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBMJG1602439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff3b8b6e584974bc185d643732309aa64af6a1b2777e66eeca3dc0047ec2f61. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBMJG1602440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3860777753674b7c0bfc43abc176f001c00e6f675fb86bec743ad049d6b442. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/GBMJG1602443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6440f7f6726800dcf47e616fb0d69a0aad21ea514dcb66002f497ab3b1619bc9. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBMJG1602444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b832521a2a1fc635aa252dca2900a7727b7344475204cbfc1fbab39ea98a02. 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/GBMJG1602445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14c7da8ec14fa08b906d73b5132552ed7421c11622ede2f3660678f80180a79. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBMJG1602446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196d696dbb0c740af99725fc13c8cdaadc4b83a1a729ea5f8d73ea28dbc35986. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBMJG1602448.