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 0x5ded638a8aac53706f92f6e6d657aae5f5cb7c845acf4efee85069ff587ebef4. 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/5d5a3751-2cd3-40db-8e9b-66b699b36d15.json and https://artists.proofprofile.net/proofs/artist/5d5a3751-2cd3-40db-8e9b-66b699b36d15.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 0x703ce85ba090be3d51ce70d86a42c3a1175d7d1e98a3471757d7543be27d99f3. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DKABA0700975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af472fa623431c6402dff13d51d646ab52efdcc2168a297eaf93f5ceece8507. 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/DKABA1001493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc70679190a05ed82b7d1b131d21999e966e9c95c2f9b54507727588b89bf495. 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/USWB10101614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad3518bafa42cfca29a5b47fc8441c2678eeef89fff6dacd70c3f10258f89cd. 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/CAW118400482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8190f75a35fd9bc48d572ecd4e213fbf39616da127f02b3a680d9be0589096. 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/DKABA0310107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb0614c8d46b4348ab01d4f8e7f39a3d1095ac333b5fe52944c3bea6ddec880. 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/DKABA0600657.
If Not For The Devil (2023 Remastered Version)
Ghosts From The Past (2023 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74901e08c831708595bf93b7a646eb1fbc981a2fe8267aef9ea08b517ddec4f. 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/DKABA0900893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2174eece27d5596d4c955dc80a2891f1f661391fa92a62f0768f0bf17634cc91. 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/DKABA0900894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21e70d8fa83abaa9b796b05ed8a59ad780e93f865fc16ff8fe1e648823e5b3b. 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/DKABA0900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342a9b9a88d6bc677e3659cab2ba7b67f2bf40729369cf49c45f14aaad5a84da. 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/DKABA0900148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611a5ea50b2560bfa116143810d3c6eaaf1ee234862906c813bedc17a82e475a. 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/DKABA0900150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c6c4d525e4003cf31953a12e3ec4b15755ecf0a76b9f7d2b0f86fc612ed45f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:36:06Z), 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/DKABA0900151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c7ed185d76693b25e19087d7defa698d5153882ba2ab747feaf53e4a3e62d0. 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/DKABA0900152.
(She's Got) The Devil Inside - 2007 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462854ea0d998fb52fc6c6290293d149cafb805009c221d4034479c3998193a8. 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/DKABA0900163.
Children Of The Night (2023 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0778be094d3a9fd188626f277de2ea20a8ae05c4a93d1d69d0437fd162dd49b. 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/DKABA9812009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc10c8091e74ff9abe51c98d2662d2aa19cd0f483ac44975837075c20f05a22. 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/DKABA9508306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48025b38cf645f561e65a962f322ca1df1f4296349e4acf07782ce75650bca82. 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/DKASA9809601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d8101c8158f9971f40f42acf3838cd6067d630bd21dc214c47a7b1ac3fd183. 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/DKABA0900301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62938ec0c24969459542ebc4b3b30a25ed321e1afa75e83b7ca8aef310191ef7. 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/DKABA9706802.
San Francisco (Be Sure to Wear Flowers in Your Hair)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b618cd50a00f37d9313edbb74375cb9e4b9c1c8b70e05bc12687ab57e0860a. 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/DKABA1102993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e07c45fdcc84ed0f05c67d3537c4f0fae9819e1f169f705e1d5f9d8b50cad3b. 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/DKABA9901223.
Stjerneskud (Når lysene tændes i parken)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f98baa1b2d99ba9d8f4e5b9098a7dd730471ac46d09f3ea3b9ef56913d40266. 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/DKABA1000154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06866f03b999805fae0c067eea58fcc3a7f6b1e2b8ee3ff3925446d8c815fca0. 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/DKABA0108601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1ac610170f5cce1291f2437057995ebd71d09a1afc329b685da5596bdb71f9. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/DKABA0003602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd672eac658e2a9986a3f9f2039bc0ee2eb264a4ddd62819bdf55de17c246a21. 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/DKABA1001448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b62a00f012b58e5f8753391dde735d2fbc825721ef75111d66ce8565dda1e85. 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/DKABA1001450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266f945d6026faa74be29f726116a068d6b15dfa315adfff185fa72c78a63cb3. 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/DKABA0900868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838aa11139708d74f86c26f171d5faceac5c1d63e9dc88e62318972d4f1894de. 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/DKABA0701045.