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 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 0xb4bbe65ce681c7dacddaf15a42735afd1568d5726d6678a6f55a541272c3924a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c504f94-3759-4c55-b5a4-77aa2dcffd0c.json and https://artists.proofprofile.net/proofs/artist/3c504f94-3759-4c55-b5a4-77aa2dcffd0c.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 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 0xceb5ff6dcc0b9e47387a2f184bc8f8e53a0494b713476e00e353f787ce5a3885. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLA307100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dada645fb6a6391cdf97cdf548fb00a052b2f223be2a337deaa3f581dc5b1ce. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLA307100202.
Mouth & MacNeal (Expanded Edition / Remastered 2025)
Hello And Thank You (Expanded Edition / Remastered 2025)
Pocketful Of Hits (Expanded Edition / Remastered 2025)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace911d502265b7c352eefa75edb1378e4948a2d3aea9a894679fdb438a243b8. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/NLA307400032.
Mouth & MacNeal - The Greatest Hits (The Singles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2792382f9a20c7bc000256b9626b344b6c0fb2b6cad4e964e7c6a709dc2411. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NLA307400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175633f1acbfbc948fdde48769261a1dd7bb544bed6ea6cbbe6336a30b574c45. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/NLA307300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaca444958fbb794dac0b1118468495c2dd70424fc5d98d1fcf1eb598a174330. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/NLA307300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87044ff2ef15154a2bd8b637b4ea5e326c35575a9dc7ad61bf876e0216d8951f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/NLA307100021.
I Don`t Wanna Be the Richest Man On The Cemetery
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe950ff042564c051c9bc4646e2e15933b3862f8ca82a399841e46e1900eaaa7b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NLA307300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0117e326087f6ef48269808a1a0e7f62572d8d1861ecf0e33001c473fe2d3982. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/NLA307300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31b105c2b4e549ecec0d9f41d44d22a244b68e2f2cf6561e1826efe2b07713e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLA307100088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dada645fb6a6391cdf97cdf548fb00a052b2f223be2a337deaa3f581dc5b1ce. 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/NLA307100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb5ff6dcc0b9e47387a2f184bc8f8e53a0494b713476e00e353f787ce5a3885. 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/NLA307100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22441ca46db069aac088d019bc77eb2c1afd9eba572679791772caea2406ae58. 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/NLA307200152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e3cd751d444babc7dbc1355c03c7a9613dcc4590d1ba198e54771840459ffe. 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/NLA307400001.