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 0x924dd02198f45ea310050043ba0b40f0c73e4c4a5222bab9fd6ee2dd5f1b32fd. 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/d024a5ab-0a9e-4bda-a738-77ac687cb43c.json and https://artists.proofprofile.net/proofs/artist/d024a5ab-0a9e-4bda-a738-77ac687cb43c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chabos wissen, wer der Babo ist (Swing / Jazz Version)
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 0x55bec9fed2914413d7c2bb36302c7455cae4540c2f2e7d99dc15a37907e25b88. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:38:24Z), 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/DELJ81920105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b336a355b5b71cf643153df78c8735f6eed787c4895b680c00e71bd4625e99. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DELJ81920107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7dd038841752f34c821007fe23e4522c970cd337e83444c015bc8c5cbc1b66. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DELJ81920108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ef6307f5d949269afea5dcd34dcacad73cf8967bab319e2d3d41a5b35d1041. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:30:50Z), 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/DELJ81920109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891e2df740c5ee47e0a92b28dd2992616e300e0e08836a880411736375bcc68b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DELJ81920115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb110570c311af3741adb942eee8f674b84eda2a3b768598f59ee04ffbc2dbc55. 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/DEWH72200246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7052646fc430f6633b9c8fafaac9e497b1a5c3a7f11b6377714bdf071cb03af2. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:10:42Z), 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/DEWH72200247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2299a603004ace995d00a7191e16c26c9a29b5b6188132d9b7598382a78b8fa2. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:39:13Z), 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/DEWH72200249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775abb0d5b49841aeeb70f7ab51fc5cefa8173cd4062dc7953fa2d30c9bd6a1b. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/DEWH72300308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d8d37fa485f1859c1b4b6c35aee8d3d191fb35695ffffcc0d342f7b9312f50. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/DEWH72300343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9037129bcff018d4e500ce11766a0fecc967b9a4ba3bc30720487bab89e5cb. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:39:16Z), 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/DEUV72500579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af74d6cfdde372e9b106e8d84a92ec726c3afc7595bc9393e9579f02a8d4935. 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/DECE72401167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881f04da6976575de712e688f7695a9ab1c521aac8be205974b8de1963d33d2a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZPLR2487971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8c59a3bc48ec32faa037e8116a02ca1eb3a1eee8f422638b2dd33a940de418. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDA51818193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af74d6cfdde372e9b106e8d84a92ec726c3afc7595bc9393e9579f02a8d4935. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DECE72401167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf411456172deec4793b1ffc6b032185694597c7b3f6b8f005edd22104f93046b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEUM72411667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf411456172deec4793b1ffc6b032185694597c7b3f6b8f005edd22104f93046b. 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/DEUM72411667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc969a2252a78a76f4eac571072951a6bb8c9fe581daa52148c165c9b3d5d1140. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:06:55Z), 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/DECE71900801.
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