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 0xb633aac4fab4f7c85207dcc2a56c1e2747af87df54e384eafea2f03e0b03adaf. 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/997fb90a-11e5-40b3-a60f-29a45864587e.json and https://artists.proofprofile.net/proofs/artist/997fb90a-11e5-40b3-a60f-29a45864587e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Show Us Your Glory (Seek First Sessions) [Live]
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 0x683fded1400aa0d3e8b43bfaf466160246f9af64ce9847a69a0635ba01fd9e51. 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/UK5GT2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4c387df872fc00ad571e9c23bfa09a8393ba77f013661ec96f6eb46a7c6aa2. 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/UK5GT2300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb027f646fd86c09cbd08f6eb6d195767649d4f0ba349a1b4b7c5786a1514447. 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/UK5GT2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887e43937c970848b50f8d89708c1fecb8193e662441a86267d38a75aac06977. 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/UK5GT2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283c7457dc5f643c0cd771dc8fb006f5d6a72dd1c453818cc848664a9b21a0b7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/UK5GT2300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5a25ba9f71934ae3fa70a515fef6ce05680e21b750146ff7920dba9ea14dab. 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/UKLT52100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4c387df872fc00ad571e9c23bfa09a8393ba77f013661ec96f6eb46a7c6aa2. 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/UK5GT2300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb027f646fd86c09cbd08f6eb6d195767649d4f0ba349a1b4b7c5786a1514447. 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/UK5GT2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683fded1400aa0d3e8b43bfaf466160246f9af64ce9847a69a0635ba01fd9e51. 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/UK5GT2300010.
Come Home (Lullaby for a Faithful Servant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ee6cac83fae2bc0824e907729d257ed706a4994589c23eb774c21d91f2cf7a. 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/UK5GT2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7582956262db1870deec38a9c5be5e92768132a36644d9a44cec8613bad02dea. 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/UK5GT2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33ac37b6974948f980c1f4a3c42ecfec2d06b0878ebae0bb8eb1a992ee3a4e7. 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/UK5GT2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009192cbf409fdd0d590b0e8887cb524d8c5b7daf6f77fffb2ef19f7ea28be99. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UK5GT2300002.
Kingdom Come (Lift Up Your Heads) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00658467eaf3e5a39ea967abeb81c1a7636a2e3cc290d675d3545787bbd5e671. 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/UK5GT1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1be5c7bdcb0bbcdd35454ba9b8182b8cc1110135e6d3667cadacc02f39f0338. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKF9B1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356b9029a6c6a6e852dfb720515598c489c12bacfce4bdec3adab0c8946a2654. 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/UKF9B1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff3ff5f933d0940a9067c877600973502886c1c72c00fba81b2eefbd035c769. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKF9B1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1445592ad5cc9afeef2a0d483ff0b651183032aa38272137efe842250625ab8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKF9B1900012.