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 0x4ffec485a2993fbae0d9ab7924f05f52f3be9af6755e74f1bab2978647b2247b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef36d5ad-5cd0-4952-94e3-801a0488a24c.json and https://artists.proofprofile.net/proofs/artist/ef36d5ad-5cd0-4952-94e3-801a0488a24c.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 0x37467dbedd429278cc1d81b3b8552518ad1eb8d43c66ef4e5775ca7e575d8ab9. 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/USWB12103205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738470e55e89dba46348ce633d722797466d19daaab49023bff9c8174b229dd8. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:43:51Z), 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/USWB12103209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274899aa0f5981c96425948f66c3fe4247f1d49e9a282488a60c94680b0a28b2. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:34:24Z), 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/USWB12103210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7531fed0cc044c70e1bd766cc8512d4186be0a5a05a0e6759b9f7bb5b5d5e16. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:01:31Z), 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/USWB12103211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb777370f1b0a89f2872c46b93e86824841dd742f2656147d1896c96974d5e46f. 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/USWB12103214.
La Canción Del Baño y Más Canciones Infantiles
Estrellita ¿Dónde Estás? y Más Canciones Infantiles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa4b5239a0e39bf67509d358eb765e212adc5a707495525c09baa630c5e8abf. 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/TCADY1802804.
¿Te Gusta el Helado de Brócoli? y Más Canciones Infantiles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052ed02252635c548d8286913a8acb57778d15915b0fbd2b56283340098a6407. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCADY1803314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265e9713d2f7b33d63af2c9c90dd9e6ce19b5ce9ff37c2a623f41704b6cca8be. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/TCADY1803315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84375f057eeb28734599e9559347736b99d398a7dce677f4909e1e21b3def5c. 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/USWB12103606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cee60eaf726557f8508fecd2cccd2f6114b0f476c05eade603c86fb17e3bbd7. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/USWB12103608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30ca290fd7855cd45e439b9aaa870e5c37963885caf913158be89d57f637341. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USWB12103609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f7c1512eeb87a0950c84d72e91217f87b3538d7a47e336c9cd4d77196305d3. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USWB12103610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33ff80334f818a70c9b0166ae0cfa9e08b7f925431273579ee3aa88dcd8b986. 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/USWB12103611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08125b99e3c3159d610c05ccaf2452c49e7c2df0e4afdf5536b8b2f228e04ee. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/USWB12103612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c40d21ade53156aec6433714de54adb1bcae58dfded8fd29589fdd4553e06b. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:29:20Z), 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/USWB12103613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7668e5753aa7e4f817e579cc75c95399d59aa73b9528e80d4eda2502395b451d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USWB12103614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea78fe9c3127458bc1a036023445e9bbc8328e125f745d642812aae5962e9da. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:44:14Z), 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/USWB12103615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174b72127a2a4c668b261bcd2dd3750a4c661324bb76990c7448bf108fff7a09. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCADY1802708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf9dc7d5a1771d44a3581df5f4ef20c123465341b16cf13d9aea867129d2ca1. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:19:35Z), 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/USWB12103617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715f0d477eb1a967fb1036f6818be6493e322dd8982ea03162266bdce1041792. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USRH12400584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9751ee50cfce284c443391c4bf1e7592febb7c64dca76376d3068caed35a7e8. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/USRH12400586.
Soy Un Muñeco De Nieve (Noodle and Pals Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c12015352f5d3fd2efd5a043929505d66d763401293a1a16ff9810517c11e0. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/USRH12400725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8093d636bfa42a822b6ad6af2ef7db1cd6bc20e653efd162ddf92d7e012fdb3d. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:49:40Z), 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/USRH12400872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c321a0008342be7fd384bfb43f5505847033fa8ced4e86e5f000d355a950b8c. 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/USRH12400728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadafb64fcb009066d8a912e845629358ab29ac140b5ecd24ebb8e270592f8a49. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USRH12501756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a6dbb84bb28f836e683279b9a73bbd9f8764ae6215dac047a86f36ee8dbdd9. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/USRH12503503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde38b575a837a6be01f567a3dc75cafa05b11d1a23f694aec95ba2f033944a34. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/USRH12503513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77be0933236f1dcc6e861a87b9c44a694d7556deb0cf9145844704893d6e857. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USRH12503510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f235c1732f2c89f4680b45f1fe7b5efa15d3823ad807a4b4956aa7cd6019d5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USRH12406677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1656f02143302e20667ff9b9df8c20a79161b53ac96586a72c37f21d2a5dc5. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USRH12501733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdbd1287dcd912ef5ce7e4611bb28a12063d2c4ba3edbe7e47947fc735b8562. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USRH12501735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91da9493f4aeb1df72db84d675a16ca60fd5c8d3054d8ecfb7c3a24720e9b605. 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/USRH12501738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3f8bdcd44fcaf878d23cf08a8e17111eaf22215288d0e73b8dea3786c50123. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:09:43Z), 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/USRH12403200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6273d90b987a3237d2e8d7fb3c3adbcaf35dda2abbd6c00c3b691bb4d2518350. 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/USRH12400745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657d97a6be483ed541823c76c2fd5f074d9723fbea6c9df5702c10e21fa174d5. 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/USRH12502296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9344afec4aa0ecb8794d363a748a8cab138a39509849ca15877e9cf47db286ed. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/USRH12503116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9fb77d3117761a4667798eb5a8d52bc13c2e8e6a0a8b0bdfedb440d169d47d. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/USRH12503119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe344fc312c4c070142a41219b9ed4950888c865736263eede5cef69c22cd9758. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USRH12503117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa4ef1afaad3019f249b52b1fb2d1d12820a8a7b1912f165ddb9e2e4887912d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:40:49Z), 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/USRH12400750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1c3b493bd7a7ac12da66a677bc491cca42abf530214be57b1d698a6484c34b. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/USRH12503138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51928b5213ace5eca51fdc1554adada3716f3fa12b9613fa8f8af9799524ddd. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:20:36Z), 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/USRH12400731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e51f1398a1ff826f7d46acb2d2e24442162af829e49f04926168bac7ba3911. 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/USRH12503118.