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 0xab3dbdc6ff3b206069704fe6c9b128a0958423441f9119d3734922ec7a4215d7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c812bf52-2bef-4ddd-8638-8552d2854a43.json and https://artists.proofprofile.net/proofs/artist/c812bf52-2bef-4ddd-8638-8552d2854a43.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Guru Woof Musica Rilassante per Bambini (Yoga Bambino)
Guru Woof Musica Rilassante per Bambini (Duoni Della Natura)
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 0xba27480ca63b15ab900d75dc3701dced42aaf604ca05d575fb035e2b248ebe71. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/NLGM11935047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3164eb7157f9235d1cb2d033399cfd3c617fabc70f5c92716d36d112584de657. 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/NLGM11938259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea42eceec0fe31427657d2be90b1a2e9b594822f1d7f806b2be5afecae2f9bb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLGM11937642.
Guru Woof Jungle Safari (Suoni della Natura)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67336070c8a60a86e1cd01267fa2839fba0f57b39bf4f791491e2f0519bf3afe. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLGM11938749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4c1041f4850194eacee55d0a4c96e1f104c48c64cfc7b58835776d76bbaa8d. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:19:36Z), 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/NLGM12014005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad25743cf73b969cd3d3c191a66744c534fa2726bd9141f4a6033f933ba8c601. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLGM12014009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731364fd8ff15e169c583950d0c6f6bcc8b92dce0443bf254b139d142358ce5e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/NLGM11946467.
Musica Rilassante con i Suoni della Natura (Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a469671866d0d122d8348021cf18e37de0c406cfe1ea97f7f72dab7d347267. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLGM12014601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3823b682e219bee0cf762505f52c5b54799a4e6436c9aa6d2534df46a04bbbb. 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/NLGM12014606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31d781effe7ab7053be57457697032bfd2f7a31476799fc62e41802ae3eaf0b. 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/NLGM12014607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7842c6cc366fce3846475905891b436f40e25085cf35f18f39ace5c9f8ee2e3. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:55:41Z), 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/NLGM12014610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7c0ccd3d73a1b03ec416ed1d511e06a3d0d2a0e59e64b80a48fbb95e15f500. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLGM12014613.
Guru Woof Musica Rilassante per Bambini (Ambient)
Musica per Dormire Profondamente coi Suoni Della Natura (Ambient)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118a1de240dbf8601d55bcd3d90030573fc6ca274a1b229f8173603fb8c003ba. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:36:21Z), 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/NLGM12049324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bf4808dbcf0c772bc424684a5d8d689895ae131b9e687564e76cfd7b77ffe1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLGM12049962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293b21d97a3c0c8b2159b1e5ece2ee45a12efe0c9eb2a7eacf6893bf236d1709. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/NLGM12049967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db32e4d60eee8baf3b570eff72ee65dab18424623b11161236abfe442efd0bf. 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/NLGM12049970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0420a6c626c4a485b5a0204c09ef7416f51142d2fad25adfafea01d0233dbc72. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/NLGM12050291.
La Pioggia Suona Per Dormire (Pianoforte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec341dbbb9130bb3a2e400b612233032fa85ed72ae44a31399a99c1e9f897156. 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/NL6VJ2227734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5626be6cbaeab388e2b855130c4a4f607b707a7d40cb3e0563ee62a7a2f79108. 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/NL6VJ2227735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dbec4a8a3f216adc7d1aae8c301c702e558aa645f6e50806414ded3a538093. 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/NL6VJ2227756.
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