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 0xd98a1a308a321c47903fe9ddbde4f089d139dc572512dbf81ffd4318e046dcbc. 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/fdf01a12-1e93-4e3e-9958-187967db7ca4.json and https://artists.proofprofile.net/proofs/artist/fdf01a12-1e93-4e3e-9958-187967db7ca4.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 0x44a39bdb4830c9e7fce184dcf9734106851a9b752b258eb6c12b0bc0b0e3b94d. 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/US7VG1708629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccb92e131bc763c2ba7044ef9b828c07300a9a5012f36490ddad588de6040bc. 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/BXG6R2400521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c46d703b8ccd5225bc16c57d520a6eeda024b557cad2baeed34d81a79eac77. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BXG6R2500152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ff71fcdbe979cd2b25eef917ddee98e2ec74b809e71aea446faa6d58376d41. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXG6R2401062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8821da3df41228bdddebbe1c06c4fe3a662f385c6881f13bae1863e9a297dabb. 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/BXG6R2401063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27959b32003e73ca5fc6d491f349b878386adfb7aed3fbbfd0961e8753cde3a. 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/BXG6R2401066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3407795e593ccd767d4d561c7aaf51dbcd9bc59daabbab43a8d6cfd7c7b85d0. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:12:26Z), 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/BXG6R2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ade106b686d407c66b0e20ad896ddb493f2d8cd051dfac34f047a0f8a8bec2. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:40:38Z), 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/BXG6R2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8821da3df41228bdddebbe1c06c4fe3a662f385c6881f13bae1863e9a297dabb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXG6R2401063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27959b32003e73ca5fc6d491f349b878386adfb7aed3fbbfd0961e8753cde3a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXG6R2401066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1afbe16908b23f5166fb01d62f7981350d38744676510f3787a370d0ccbba0b4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXG6R2500272.
10.01 - 10 Anos de Phe Cachorrera Deluxe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaff3bfdc982c9c1e5deca3b55b8c22b34a2c14c4d91694397c8d81960ffc2c6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXG6R2500407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2501b56b8314b7f2abd0bc679ee9cc74b36ff196bc790bd80dbd40cfe33b38f4. 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/BXG6R2500601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8419ad980b1b98557d42baf0dd95daae5146789c64bc735265d2fc83d85d5c0a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKBSS2400322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bea1c17d8ad4c008db924f017cb523b8d6eca76db3eaf5eee28828335a92b2. 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/BXG6R2400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff0b2b192c3c35e0dc6a0d71059ebe847ebea6810006bfbb1ced5b0a421071c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US7VG1547144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78edd546b6c750d41815f5d152b74be7695abd3b825f4c3899c5e4d18e29070b. 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/US7VG1547148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02799917ce43e999e6f73690d7aade88a73dc59362f84db122cc8ef2985a408e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BXG6R2400572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f93251c36e1bc0a81bc85ac5939b513c026f4de3d45b1860d0e716bdd6d626e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXG6R2401103.