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 0xdffdb8db1e4795e280979b7aa939b0841a53943c6a51e53d1e72dde39503e3f3. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f07419da-bec6-408c-8759-db00074c5558.json and https://artists.proofprofile.net/proofs/artist/f07419da-bec6-408c-8759-db00074c5558.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Psalms Project, Vol. 2: The Lifted Songs
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 0xfc708359fb522cf34a9d2d6728cb3a02e78da0729a49436e32b679e0d11e1d57. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CA3M82000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a77a5cee19070c39bb0d547babe4b81186f6591165dc57cea4870da20e7e29. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/CA3M82000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c78f49d632b4aa5c2f940bdecadf0d6cbbd66aec4a133dd3c3105a3ba11ac7. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/CA3M82000014.
The Psalms Project Vol. 1: The Carried Words
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec9db6b73ae6795996562ca18e5e5672081a4ba7ab013db93faf700b436df29. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CA3M82000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d2522699b36d392c1df32c2c7a7d22702144a884ca35ea4d4320bb321fb7fa. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/CA3M82000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69becf616de319a5b98cc0953a7ee1f0b903abfd18774111ad1755a3a96150a8. 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/CA3M82000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032c3e66f443a8ccd159af1d8101615c86f43abca71e704e2a67be7928d0c984. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:40:44Z), 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/USHM92264397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5aeaa478bd935d5c7a05e0c419691a7200ec3077f390260a7db238a069469b3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/AUMEV2395946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47590e26578ffbc8131c0f75495338839077df1b8dc5ee0f144235111a22f6dc. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/AUGBT2307354.
Songs from the Canyon (The Psalms Project Vol. III)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab6c5bb1596b9d5822165ffbf4c2afe74e3ce7a8d77d0760c218b25645dbb82. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:17:11Z), 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/AUGBT2306479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8463b34a05639a01adbf995b29f1415616ea93796e59c5d2459f6491197b6ead. 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/AUGBT2321838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5aeaa478bd935d5c7a05e0c419691a7200ec3077f390260a7db238a069469b3. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/AUMEV2395946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ca813c5fd7a6dba937a735687de81a18fb139942bbc00931327685ac9da0d2. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/AUGBT2436874.