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 0x7ff144c63c36bd4be329c77240cc02c0b1b078ea9a00398291068448b5d2ab61. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f85e189-5ed2-4881-9584-240417864810.json and https://artists.proofprofile.net/proofs/artist/9f85e189-5ed2-4881-9584-240417864810.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Enigmascope: Temas Executados pelos Retrofoguetes ao Vivo no Teatro Vila Velha
Enigmascope: Temas Compostos e Executados pelos Retrofoguetes, Vol. 1
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 0xc593bd149569f101560a40043f266e09085eff652e82819b7c68cf443feebe72. 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/BRN8V1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc30b7f9f8dda9c5d4b934664cf780e6fe3a7647406ef869690708f0eb65b2a. 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/BRN8V1600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d66d12d30000ce4b2f07b66590d66b54b34ef5d8b71b9daec8ff8efc1399507. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/BRN8V1600001.
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 0x4158cd49d4e84bd445699f87418d598e16155ee33989e8307f2e3bbce3d13384. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/BRN8V1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb06da63911f5f8b42af82220af743eb9673a9c8c8374807adfe2395b1c8036b. 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/QZ5AB2054374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f7bfe390fd08182e31703f82b269818234294dc9373fbff9c7eac5d58ccccf. 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/QZ5AB2054378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d14ed1e83e5dfb3260737eef8870e053dffe1b05be8337db15a317ade3f87e. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZ5AB2054373.
A Nova Onda Hipnótica Dos Retrofoguetes (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65158502458135c3b7047d988c699a4993a487c72e2d055a7746e3235c97fea. 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/BR4QE2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87a633b61f1ebc10d021cd5c055e6cb739fced51deea290adbb7cbc5028b0f7. 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/BRDEP0200294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3b4bb1edd8ed42c3a51c4a40822332c89acf75f92c28987e4901693b2ca092. 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/BRDEP0200295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a8f7741aba69efbfc48c2655b841fe3f0fd5810676db221ba3c9d5a613c424. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRDEP0200300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eef691ae14002a2c931e51398f8584fcf49b39f9e5fde41ac6690f86266ffc0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRDEP0200299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b7e1b304a36a1895028f5b703bfcb5a2a93526874cbf48c09eda03c99c1d55. 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/BRDEP0200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3bf507737583d3b56a48a6e12176c9cd9032534d210092d8ac67e971c324d3. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/BRDEP0200306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1854983c86991ca30f7d1c7cbf2db3886b3184df21c8874facc2f18e414ced5c. 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/BXE691600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9297b395dd2eec5ab0f0f5e8372e56f8fa05e1dbcdc36e006083ad221acdbab. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BXE691600009.