The Mammals are a contemporary folk rock band based in the Hudson Valley area of New York, in the United States. The band tours internationally and consists of founding members and principal songwrit
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 0xb66a37ff475d79e701fdd10a193a75e8a2dcd1fdeee699f65c3148293d1a3cc5. 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/ab68262c-6d34-4896-8129-58b26fb385d0.json and https://artists.proofprofile.net/proofs/artist/ab68262c-6d34-4896-8129-58b26fb385d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I'm Ready for the Industrial Revolution to Be Over
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 0xe33f36f4bfa59847325d720c90b040faf0433afb8054d94bffb762b3ee2575eb. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T16:17:28Z), 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/USG7P2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01eb3e7ee2064761dbffe08670cd657cdce1a7bda3dca34eeb948fbd768e0b00. 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/USG7P2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5dc2ce04ab7e63e71d44906dfd852ec6ab6c8ccd0eae1669f970606191c224. 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/USG7P2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037b82295d94808308f8a7f2fa455ef283a1fff6cfd83b6d9f5a6d3dc34e4ad9. 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/USG7P2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39aa6a3d149d2eb338109faf3e3d20dc62650bed28dbf740be311704d20daea2. 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/USG7P2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9e0d7ab3494b52865a48194b84a6aedcb5c52b1b3f6917564f9b7a304e3f36. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USG7P2000003.
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 0x4c743e0bf077c62c72080c6193988988f685283822b2f0f0bd24cf4024644833. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USG7P2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d22df11f4d8b08a2b3bbf156b8a11e7f16bcc5b76e4ab3fb5e4059c5a0c135. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USG7P2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36543c7dd07618ab0733d35830f8376cf9bdd592c301a54db47d1bc9f27ad755. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USG7P2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3f64f20403928b2a22f26740815fcda3af092a4b5d3a6f85d23248b6501430. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USG7P2000010.