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 0xa0001e3b225061590654465fede0d0fed853167d3bcb161942612b2833244254. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df8a069a-c82c-43b3-a629-faa5aa771bcc.json and https://artists.proofprofile.net/proofs/artist/df8a069a-c82c-43b3-a629-faa5aa771bcc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Manhattans Featuring Gerald Alston & Blue Lovett
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 0x1f17a703e42c3dbfe7acfb4876c387727ffa011fd95dfea8d2c60824f0a631c2. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:07:39Z), 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/GX4R52157367.
It Feels So Good To Be Loved So Bad - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c1e3c032837526ec9f2146fd6ee047dd7a7b358a124587937d26a4d6daa6a6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GX4R52157379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fda8ec22c17906ab7843d53c6d32e0860083717fbc74642a03cb8a6f49d3e46. 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/GX4R52157381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813b47ec9d1201a3810f0ad8f237f4c6aab400cc4c220e636ddca7d0b587e55b. 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/GX4R52157384.
The Manhattans Introduction to the stage - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dfa117adc34e35091aaaea05bf76bdcb1527717d5b0867da58891c5f595872. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GX4R52157365.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66595f417da1516e062a7e6363d557d0b673ff245850ed44749bf12a9317a3a. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GX4R52157366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bc48a37165418229e57fbd776d731ded71ddb5fbdc8b6cedf1952484be1486. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GX4R52157368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e37f70131a8fd5acf2b455ce48e933a0110e14ed5d68ae27c68da268615cd1. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GX4R52157369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015350a51cf0b36ea3cb408f8bc0f31700be80024de14901754bf634f56594c9. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/GX4R52157380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71a26cd178fa8a98d9f833dee6db4eaa269070a8b4b8b40ded433a4c68fefcd. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/GX4R52157382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3418c4d6e4e69521151f440b65edca1d974c90b8ab593bcc2eea3d486846a1. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GX4R52157383.
The Manhattans Group Introductions - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd786e323f8eeb668b8e84d67438371e46ce9fcc54dee5a44d88fa4379f308df9. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/GX4R52157385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa15cb5fc0cc7fb872177babc06c8a8a8ebf2b0df8ec0e81da2e8a75f6ba7266. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GX4R52157386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030aec5727b570d404ec78ca9e6981743e1fa73b6dbd6059f00b1a36c95a8ada. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GX4R52157387.