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 0xb3c1b44cd7b652bdb7769c018603dbb8b7f070444073dfa1ab564b97da0a50c3. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cdb60cf-ab13-41a8-be26-30bde1ca02da.json and https://artists.proofprofile.net/proofs/artist/9cdb60cf-ab13-41a8-be26-30bde1ca02da.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 0x6b9bce1a2b21f135345edddf05b356724dbec22c2ca2b9bd6968a65d14a34453. 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/SEPQM0611071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd0afa6deade7953ac7ecc07a498105c7ede540c9969fc9eedfdfc4328fa8c7. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/SEPQM0612917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20771877678f5cded876e94c123c31a9a307fa3953cc670c696e43a7c89f191. 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/SEAZA6116010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43e56daf75dbd3332826e495518984304dcbaf3e421914867276997f36cfce9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEAZC6203010.
En gång skall vi åter mötas (Einmal Sehen Wir Uns Wieder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c3b6e7b4d3c4aedd75fc61b4e5be6c2e7cd05399fe305ae10094c7dc70de44. 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/SEBFO0500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca97a21a1030dbda3b75a552a6ae0da58a0a472833503559866d87b0642b4182. 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/SEAZG5902010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9150fad4f27d4e8023db4044d704d2c2ae5a6683a8c7d00ff86980477fe0af1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEAZA6306010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6690e70ee278323f56f6158541afd92b6dff5fcb1ac08f227c152b8414fc2ae1. 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/SEAZA6501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1129bde2443d59bf6eca4da51e88eb44472edc7bc3d4e3ca07e080de1e746e3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEAZA6605020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0a6f92527722be68f21eb49bc86009308b4bc6c20d07f4a7cea53eadcd2608. 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/SEAZG6725090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef24472f0c36fe9f5b0cca5f318bd91ebab273794723e0a1dae994b0a3017236. 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/SEAZG6615010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bc7fd2a94b32fd7100c0afa923fd35a0df282965921658849366a7543f9b2b. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/SEAZA6605010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c79456c3be79b21a1266f8a4aab2573ac50a32dcf1ffbfea10517f70cb7510. 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/SEAZA6902010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e31e1a1fe2dd69498dbc9b4d64d6e85b3ca09c758634233a90b77f763895b80. 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/SEBFO0500139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0848322819a38233fe18b2a9a5cc98ec369e1e9b6bc7f9fbf103fc52a987cb. 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/SEAZG7024090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf938669b7e8f43fbe5b346bd0c0230217de02b591a1dfac446c07d82b56f58. 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/SEAZC7107010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc807a45f715ab927868ad4df1292fc02c24ed38275ce2b0fca60558ea6d365f0. 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/SEAYG7202010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c863e80e85d82d31db3c55240c52e7cc5f230806e9610013444e3d7363b32f4. 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/SEBFO0400274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c2442e51be166d8207cbeb199b79d0d388c81911e842d2d3be51e9caebdfdd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SEBFO0400287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68154ae24eb6ca10a30bfdbb46b43b64e20c5646c62152104a6b9c5dc0c134b6. 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/SEAZG7524120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5667db22c6a12e8bd84b489527aca5b03585a7b999018dd668b4af0a0f1ea063. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f01a1537f6c758a577828fd6d17cea3dc22b67ef8e86fec03fd8e0183b9d5dd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5531a3452c6971bb555a6b614354b4efbb3abe8c9caa1e306dc01b6f9d023311. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6968283549b476bd590afff5650f3838a15f6a82056baf7260f2fcd3729a83f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c6364ee6efeae298b2f2ba313ccd64c74503c13b46440256ae536eb7728646. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8198976d4a7987f15c0c6d20066c1f65b60e3d71423aa0415c300539c9e77a27. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d3658f5368f12362045c63225cb7a8deaa321ea62d70d1c877678c4a846ba5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8379797391f2dcb161d32d43230789ae2aa66b7a8ec2c07d92c859c29ef1205d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc67f9243d5b055a55637ad78f0bc9a737ea83b5f94215c2c9149ec6bbb3c42. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50811bf267d260ffef1141eaaaab06838718743838d10a40a6a799780a673a45. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717793.
You Don't Have to Say You Love Me (Io Che Non Vivo / Senza Te)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d63945f13b604d0f2854676340b13838cbe7f9a1e3e76dbbbb471c41ddfa9b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730dd3ccc625afc0be0974e9644397e36f9a0d5984bf8d89aabe8ba8bcda9ef0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd612cb6137912f5d5f2031df76d24a3ff31c79c46fdaeeee2f910ce13e6f69fb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c40cf0a195ebc5c7737f884a282448c5cb90c4b941be3b89ff57299de2daa28. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0717797.