DTM may refer to: Arts and entertainment Dennis the Menace (disambiguation), two comic strips and related media , in Japan Detroit Techno Militia, a music collective in Michigan, US "Diamond Bo
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 0x5708663a669fd0542fab82daa1676cb06e82a3d7d5d0a460fc83ce5221c6c342. 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/c9695a23-5159-4a01-b90b-9f44f4b0914e.json and https://artists.proofprofile.net/proofs/artist/c9695a23-5159-4a01-b90b-9f44f4b0914e.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 0x1b389652fb820e022f198ba37d8f7ee4489c485652b344151767752f32fd3ffc. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/USHM81193179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc683b489e6e9f6473b9ebbbe728f724016be6225dee9db6ca34a143b002ba449. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/USHM81193180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19131e82c44b62a1fa7f54260ed76402cc69ece144b11bb8fbd5fde8535704c4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USX9P1308383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51616d418fa36222c3cbb489437ceff627727e8276b6e847e82478d5bb0ec8c9. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/USL4Q1733667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ace4e86f165774217b3b75c6f52bf811a0a4ebe219301e2b7d42263308f2cac. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/USL4Q1733668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f492546081c9a1028e2ed6607489b90f893c1b26cfcff933721aa1045a4405. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/USHM91808687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd214189920a1bb571b2fcffe648c9ffd631dc4ae0a54cf1c636bcbd34ff7a67. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCGJ1961917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d2b3d7d41aac9d295c6129879aff60b94e0c95e85c72d6780e3e53457e4287. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USHM92483697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932fd2055211e82e5effe92d4d42b8eaad4d2a672d185449319d2d2dc0a6191a. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/USDY42525940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7d1774431000680086596085c01b42bf1f6a60cdc2e838b0828144f6d05050. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CAZU21600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63859f6abfefbf31cf69f87fb0de666ed4d6b7e3a4a75d997179b192af944e81. 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/CA6E61100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb508c1cda9e56e15d0a6eb9d601e2f32b25596a0bd80fea3a4111fea456d454d. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/CAZ600600328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa69db0e5ac8a5f08ae147ea2fcef4c9ed5747ea6d74227989058eac5b1cd03a. 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/CAT561198614.