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 0x47841040165e388a4a7effd998155600f0cff26a868e59e60389d004d8cd6741. 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/d16c641b-bcfe-4e58-bcea-ff94069932d6.json and https://artists.proofprofile.net/proofs/artist/d16c641b-bcfe-4e58-bcea-ff94069932d6.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3da70bb8cec4de4d0a532ec844c0b24deceedd16e1947b4cc1108fe8bbe69af. 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/DEY472375075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e313c8d61be4485b50fa591746adc36d8d87207e5efc4a21c535ad083f3cc74. 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/DEY472375076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dbea31fa0ca6cc7decbcb47fc2c81411e1eda401b45e525bd1305f74bf2560. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEY472375078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe327a6b95f2afcb142be0377bd16dcfe15ffe5730eea387a3da3585462ff7a8a. 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/DEY472375079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed68f33f511a69832a8c6a7071f6bc5cbb225c9aeaf22dd4b11c991290824752. 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/DEY472375081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256ad73b42b6b5bc77a68cd9b66905b3a26bcbfc73c7bd2f986e412cc321720d. 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/DEY472272189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a3fe0fc161ba1cf62da6d4166a6382fa7975754f880ae29f23a47a3cc0bb6c. 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/DEY472272146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d554b73f2433aeae778dc81d5408dd798f82762a92a32c5bf8f10f090f1bc78. 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/DEY472272191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426e1ec841c8cc6b346987fd638b676935e6fee482837982e252e9a4acb0655a. 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/DEY472272194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592a76e9cf6fbf0ad71528de679d2ca7a81037e27fdb8502f00a1c1450c83a9a. 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/DEY472473637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c94f78a4695ea5c0bda7c26ff98bc69066e1b790ad3e7c745db9c3f8a40188. 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/DEY472473638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a2952c208dad4cecd27c280c0f941ccd56ae7154148d298b3f86d19658bef5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEY472473639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d373049c3d50067ccb889f434d27944169c7b1571b6d102a1fde96176654e80. 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/DEY472473640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5c89ca5bc764b09d78489bf1fce7fea8ba3be61b2986f660df6f6b7f70a3de. 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/DEY472379840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cc8a90104f22a59b770d001fc782d5c894967086fae913c6b4f39c89a7a839. 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/GB2DZ2320006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73474d43cd78ae5790f52aebb28f1782d070b53f7d9f85fb523b7fee1db2ac71. 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/DEY472377668.
Studio Dobra (Tapestry Of Sound Club Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73474d43cd78ae5790f52aebb28f1782d070b53f7d9f85fb523b7fee1db2ac71. 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/DEY472377668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaec4d5b33adabd157af7199b8a4bfc8bf50b093158ad32ca592e4021391f5e0. 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/DEY472375707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7e4fd8b394859ada65758ca4228f57dbbbb44ab9bf796e26384913b57b23db. 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/DEY472375692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1063b5ab7134d228444637616cdf4d08dd85eb06423147238e9011b6c4b6d3. 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/DEY472375693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebcbf6dd4159e6229c2afae70df4253f2337fee798c434a18ea1db3ad61ec1d2. 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/DEY472375694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070ad46ce18ec848ab49609b281d479867e17751bedf78e37a9ff9b7871f1c29. 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/DEY472373342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0dd085a8421679fb8951e0eb159144f1f0c87cf0c3bf18325df46ef331e497. 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/DEY472373343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ad5b7b6473cac6fe6a9a06142bb1f17a75670fa531df5fce1a2c6b0a8cd7e9. 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/DEY472373338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e24052aac7455abb80e9113b4ba23045a8d60f4cd3ae05b7de86d029f57da22. 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/DEY472372472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf92b2721f9af4a90237d1e5799ca1b9cccf396ad9e75430e42b8d8637c6c4c. 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/DEY472372475.