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 0x3e149d5e7ea490b5cac87c5677dbde78aec64fb385eccba1fda6dceb7ce86652. 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/0c5a8058-6e2e-4017-b6c9-59f010605033.json and https://artists.proofprofile.net/proofs/artist/0c5a8058-6e2e-4017-b6c9-59f010605033.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 0x640b135bee2972d6660cad5584d60d27deebeb97e750ca1cf4f76183886257bf. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/GBLV61910096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa7a9c7a827dd8c0b43d937926733390dd37987768fbb5a9ffa96ec4b616795. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU2075124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526de30e0468db41962c9d074be6df4a85f1d400dbebb36e7f5d1352196c6ec0. 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/USA2P2027334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68449ef70b39a8b46dde5be8c325c8b3954bd80e92f08df9866fe4953ddd308c. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:08:25Z), 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/NLQ8D2000696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1236a8a3e4651fee3e2f13fc90829c90ca51ca585f695185afbc5367bbfd33fd. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DK4YA2137501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93656f8227edb066d872abd4497e5a74b22c6f83170c6a614804bcd09fc303b. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QMFME2133832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4597ee61edf7c74bb129d24f77c57bd989445c463931c6b99046b6b156c9bb2d. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/DK4YA2161201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ddb9011abcd9e258fe3ab8063411cfaa41778661a9c7ace3809aa6cd13c7ca. 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/DK4YA2271601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96804d422f2fdf567dba2e174535fb62a166c77e14d8e487d87af01747f4c2c. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/DK4YA2276001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70743753e494a48b7489c1564db712dfe875c47d914143427487df1563bd27f1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QM6N22298275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb509c9c81605c4ec7205280c280267ab702a3a08f39ce2358abd7a4e143735d2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DK4YA2292601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5fa3b5baad33bd68edcf68261c9ad508abb95a0b7695bf6e409985cd285197. 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/DGA092371926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c61b0a1f02233f7a7b2376c321485cf3464347817b6737ae9a57bd74026c58. 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/NLQ8D2200678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090c3def058ce3a78939d3600e98e517c59e638cb567e13c7649cff447c2fae1. 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/NLQ8D2100259.
Don't Leave Until The Morning (Tritonia 327)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cc2a7e6ea8e961f2a718f607673185e2b2e4eee7c1a060a91a72120324a775. 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/GBLV62035554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5814e72d377dcaa2da09eb126d6849d2ae1636f3db62975f0252a0a4be706b39. 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/NLQ8D2201255.