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 0x8ac33f889dc037860b1bf0db154d5e62e54b55366a0b0c02099da870d011d142. 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/af0b26e7-4dda-4e7a-937d-7e84098f3c3d.json and https://artists.proofprofile.net/proofs/artist/af0b26e7-4dda-4e7a-937d-7e84098f3c3d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Only Thing Worse Than an Overpriced Bottle of Water
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 0xfada5ee85a345fa8171c8edf6ffbe9032dc27261fb03a7e22529f448f0e7757f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QM2PV1512726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad93c1bb8cb8cb0f35449e384c3986a871e8a95379e6b6fa722f26fe3b7964e1. 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/GBWCL1700934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e86b67014eae473b49aaff3ec2e42d0c098905abb72518bedd4d84c839ac38. 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/GBWCL1700935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41dcc04ffe4c576c7c733b4d6805db746579200a97811e722f03519cbe861451. 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/QZAPG1877190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9c97a99bed66667fbeada2193cb36adb3dc0033285eb77d64b907e9cd9daf5. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:29:17Z), 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/UST8K1848214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d85dfe84ad529208885b25ca2d95ef1d4778cafca9c311527e013f94f94ba9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZES82055424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8b4ce83256e7e6554c696d2e5d59fa531963466ccaa8d7b4ae5ca537b59aa9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHNB2061601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fef80c2330b959e384ed152881708d55e1789ea9a128049768d3d01a18115e3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA42182224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6f32235cc4c03ff0679ef19c1c336b401a5d16f757a73878555f88d90eb5bb. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:33:46Z), 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/QZES92109594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664b021b0d2e14c879ed447820482136ebd7d68161f5d78620f79a7097b519e3. 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/QZK6J2148807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6dbd6ac2226ec50539e431be49ab951eabb4cd9b36149ed586d616d0485e188. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:20:40Z), 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/QZMEQ2192239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30f5a78759eda8bdbd6e5321cd17fa212d24a0d8f799a51a23643f23a12b8d3. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZNWV2277912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa43af14bc3284d3edc0f65c86ff0d165f285472f144e12d2aca4a46b5f4d2e. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:58:24Z), 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/QZNWV2277913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf9a5b1511c07ea9eda230b44cd81fc613558e1dcb094a6c1e619e44f87f4a8. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZNWV2277914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00e2b03f62fd11f09b2f2b6138e3adbcc64149f40e5511e4e6ba0f4eaf909f9. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:15:24Z), 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/QZNWV2277915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fbf121a39142db797fb043a117b6e6250b964bbf4048458f56da7d75514464. Chain 2 (Bitcoin): anchored in block 957611 (2026-07-11T21:33:50Z), 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/QZNWV2277917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1969646fd969c643405ab79b2126d132fe8b49413ffceb9f47b8142814061519. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZTAW2366438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12575f3f150316e7e36edc98fe93feff6c8fcf68c84b637f043e005dbe6eb772. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:22:03Z), 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/QZFZ62473079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd609627b9e9716d5eabfc220c36d2a3d8887e3d03fb828081833a355fce2b426. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZK6K2559338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7c42b705c1d12848e49af7ab9917416197ed96c2877bde375d0d2996853b78. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZK6K2559339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935277b06da09d61c95996aac2e61fdc33d8ab04d9be1bf59555c384887f8767. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZK6K2559340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e03ce70a8bdf60048456b0a14ddf8871679a54be4b5ffd8ee2db8082b944d8. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:03:47Z), 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/QZK6K2559341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aef94d2f75abc7af287864f34086faff1aea324e30636222a1cb06905e9faf9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZK6K2559342.
A Piece of My Heart Dies Whenever You Lie to Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74f68e77f92d9763ae568b3d7e1391e093027b4e01fe8b9531cbccdfc241908. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:08:47Z), 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/QZK6K2559343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd342c6a268094950c7a621766c46e546d6fc36a71a8a31c4269ccb2e6b61c505. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZK6K2559344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4c03c8e98435ce2da3cc559a3ae6e740b4abd4ec6e349c953f0f4b45601654. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:41:22Z), 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/QZWFN2457976.