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 0xd2e4177c194022265ba20d388529b8c293a19767f4819e3c7b078203c3708923. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b60d6768-0f46-4273-901d-48d20f3cd33c.json and https://artists.proofprofile.net/proofs/artist/b60d6768-0f46-4273-901d-48d20f3cd33c.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 0xfe46534c34ce61ae33111fb3ef6fb2e3cb8a87c815c1874851216e969e08bd48. 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/US5UL1410521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b4d5472ab974aff9b3d7a443319e1b451dcdf76f2aada34f7c6009f960fb07. 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/GBPS81500868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a6da4448598757e7f921c3681a1b76e9160d6bc0a22e63fe3c6718a77f0d7d. 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/GBPS81518952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe548d36b078aca1111f03a8916590f9cad80c45c7c5bbc5692065d947dbea4ee. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBPS81513212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f81b074f1f33f1835aeb3f18a999b7d0333a21da38c306014cae01d1b5a56dd. 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/GBPS81500914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba290ac41cfee3bcefb744dae8dd0ff7060012ee44d9c3c2ba280fc988cdb18c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBPS81513875.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Bob Enos and Friends play Music of Ron Ermini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b8dd21597e2633228b6f73265e6f1427803ca661a592cbc2cd243752138da0. 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/USHM80344503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32c61e30b8625445b1762964efceb336571bea6b2ffb4f8e0a3bf0bf8ad3e01. 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/USHM80344505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6182982225b26c87e773e3d9e8f7545f54dd601d747cca1fb55308756b76e9. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USHM80344506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e7a40f1e593d43d56634de866ece898090caddd20403f2b987e755a6c20bdd. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USHM80344509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757a1ef250e2203e5b339552632cdd8dad20e09af2dcdc8727ec4496278b8ecb. 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/USHM80344511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d94e8e00ff89dce7b0ac2abbebe5cccbaacebd197ccbe138bdeabfa0c2fa4d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USHM80344504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe8c5594327973ee412dd8450879c1f529009db7e7b799c8ca865e0b11981d8. 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/GBPS81513887.
Aromatic Coffee on the Balcony and Break Time
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6806a0215b07279ee75056debb9457d85a89883b010e59ccb2a0709374d1966. 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/US5UL0724814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a00cb6c7c9904a2e120092d230d926d00946c3915e9c89ff33511dc18a66fa. 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/GBPS81518951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28656e4fb1eb1d29a750f3349c29357f56b11c3fca3482a1188ab6e34484b390. 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/US5UL1422120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc4b4a9aaa663eb2907df18c8196f7f2acb90e9e6fec74d5482ad28662c9cdc. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBPS81527820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe605f9f594760c535c723c6392235a7509b9b0e35fcbfd3bf6ad86061c921616. 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/GBPS81513230.
Dinner in a Luxury Restauration with Her – Moody Lounge Jazz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb67e6fcb1571427b1f167a2ebeb985e2f4346b5c5c810b32652c7d56f9fd08. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBPS81528923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaaa1bce314d1b03d1cf734573c513fd200d76e0c5d036dfd62de1ff0724a99. 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/US5UL1155441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8916ea31ae89ee5a20b911fdade69ee52f653914504f969a16da25d753d71fcc. 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/US5UL1526027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0590948b1559d535a41bb2d29dc62b9314d7dc06e130650d507464c40611e2. 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/US5UL1128781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6707883f3f3b6877117ff8204e6e1221be155c5638d1befa45566fc297972c01. 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/US5UL1244682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f712ff74d1040304b471bf019243b17cdbd55ac80721f548b9d5b04621dc3ca. 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/US5UL1157517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bada51f87d3c69c358aad16453361871cc6b3d396071b0118262744a36992d. 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/GBPS81528969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0aad4559a64379437261d30985b07b4296becae3d5fef06b6debcd2b4406e0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US5UL1128329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df5082068e93617bff04373407b49f09a0b751851508d72c7ccba166b3df9da. 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/US5UL1007991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c535ae57b14c1b221b95426b5f4bc994b397eda9726345c121a19d22a79c53. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US5UL1438649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eda79e75608bd9d2cd5d41e2e999e50f9eb470abc6d4280021d323d570a2cc2. 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/US5UL1203985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa049d27f2bccf138e18f7c1c88b61270f8fb29d5dceecb2e4b9de9a00df7ea64. 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/GBPS81527417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93310b9577821885afbb32ad06b138d0c9bd37f91cbf86b6ed0d97c87be0c8b2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US5UL0708920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f78bc7ee861b2768e0bc52ed1bc68814dd42bed7a7cfcaaef666f181150cfa1. 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/US5UL0787763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b4ea4cde92b417f59592d0528390ef4b5dedd82892d6782a7aab46a1a19c5b. 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/US5UL1526626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f0dd28eecfff33d4e194c9667ac4c5f82655bb1e71486c601fb0efe85621c7. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/US5UL0730295.
Lounge Jazz Relaxing Coffee and Restaurant Music