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 0x18420f05b23c0e2d200aed44dd4fa0e7c76f51de8a36447ff8dcf4bf882ff4d0. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4944b799-9bfe-4bd4-a061-1f64a5819e9b.json and https://artists.proofprofile.net/proofs/artist/4944b799-9bfe-4bd4-a061-1f64a5819e9b.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 0x726bbe3b9980c786794ec02ab7a1b7632df68f5784e0fb699614faf05e9cbde3. 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/FR9W11212650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737a1c22d3538040f9c0215ac52784cfdcdb2a0cb7d1c017be2248f19fcec8cd. 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/FR9W11212652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd4b025326e7ec8830045c9648168299f5836aa7a205020536245daa045a810. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FR9W11212656.
La plus belle pour aller danser (Maître-chanteuse)
Chill Out Sessions, Vol. 1 (by Kid Loco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ff7c070862254a81012f5aa7a5cc74310801198644bcfd52926b94e3f5eef1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ATW630702308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db32f4f50d6da48a380b36c6bf34e68af3ecb992eb828752a897834e590f29b. 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/QMNAX1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc38a03738a5d6ff3120008a75b723cfa182a80332964bcddea06b3cef345e9e. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FR10S1447496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1459d2a67b439035cd20d8545a27b40d2d90e127014344d33cf9dc54ef98aa0d. 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/GBEUE1600128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d6161f313b1f0917f74e995bc49c9b99de65804c1c303aa2b9feebbf812e8a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR6F31922620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ac2410a38a904b5683c3a0c92926dd18b13374d249c1256254678fbc695cbf. 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/ITH759800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f5a1998bbd8b1c557c2480337513e420407ec4851335b8f1848063339b8ae3. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GROLK1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61be8a973255bff3013009f45f10bff7589da73895778c5c0da379c8c8cc0bc1. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBCFB0300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48065598e297c685bcb703d0a1e4d3e840b82a6af2c6272fcea56a96d5e6f9c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBPEN0810013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d4a3ea5375aa435dcaf7a8b1ebbea98f3b6b52a3524364603d63010202d804. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/FR6F31922650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f2cc9c68c26cd3e5b3c3feba61259f824408fd853456d64c754df2ad70569b. 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/GBEUE1600155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece0e7d98ef61a9490873afc316d3d62ae2a0a8eaa2756490fb4db51cd952549. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/FR6F31356340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3bea8377a8e3d79aeef33d01b4a7298c855cd45d306d4dc80e10f3a8cc3b1f. 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/FR6F31356350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14316c5786d7e09f0f8a7901ad0d8242772abb61fd30b642274263f6adb1419. 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/GBCFB0101805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1bda1216a7b2bdb7cc22408884068757e62a3b9d4c3c04d69196cdaee62556. 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/GBEUE0300449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacb5d333897f240825f9fe721786cfd0ef7814560e06a4b7030df49affd2c2a. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FR6V80006297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1a0b22548c6ba2680bd186da523b2bb4f3bf47097f8dad0da8bcb9fa51fd19. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBEUE0600406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49bf97cf9f483791b72757d7b4ac610dbb57b5aac1d6c189ee3004262574b8f. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/FR6F31356420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f81a451aa6d7ea0e71fe25e392127f9da4f94e4b173fca61bf36d872cac0dc5. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR6F31356430.
Forgetting to Remember (Nostalgia 77 Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810ef2356728a065b360cff4c66fb17e46a27d6e816143c033edd1563fa18f9f. 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/GBEUE0500204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f2224234a1f5d086400c1e7c0945a76e18acbb103aafc9f054e731eef1367f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBEUE0600374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c8b07b0ce28c51b3317e5451bff1af4625087ccbe3554dc2190563ad308c54. 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/FR6V80009356.
The Softest Thing in the World (Motorway Accident)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30cdd767aff95caca989be2b4e404b6fd238f34453bb583eaba72565310465f. 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/GBCFB9507029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf717c167742b0fd475cec9306f618c7717f0db9cac2d3981bcff6eaea584fa4. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GBEUE1001953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4083773298429048a38a9e7a3774c87dba1a25e52c68afed7c96ac3fd92fb546. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBEUE0400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0c4ce7f13a2cada628f11b7e3d736953ba50693f02d3b68b2dc489057b620f. 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/GBEUE1200113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686f02534772c144d8bbd4b8ab0234e701c79258c972903ec39847b9989c7aed. 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/FR6F31356590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a0fac6004e88a434a482f6c44f07c6661b9290ecb481200f4cf5c9a542095b. 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/GBCFB0300251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ae4ba1bc7213c8b011c3f731dff5d2c6ed05871f35430f191af26511904410. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR6F31356630.
Wandering Around (Spooky O Mansions Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0074160a802066c07c08fe3c07a19e721d5bf55267878762037f44ec9e6a815d. 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/FR6F31356640.