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 0x5be5a84a3e2c55d93b60cc64acdcaff8877a8003a16a792ceafabcdfe4d07663. 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/318042e9-2876-4495-aa52-98469af636d7.json and https://artists.proofprofile.net/proofs/artist/318042e9-2876-4495-aa52-98469af636d7.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 0x1bab9299b5170273150976b52ec479ca63077c831cd23fe89ee8cd88bcf333d9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ISC100101002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea574cd97887b6b1ed94855abacd2bd56c45a380621950da863843154847853. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/GBDCA0500419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f54aa24328ddd38c4aade4f3f125bf3e0d3c0877f604c9a1761e2cdc258e59. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/GBDCA0500422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f13563cbe5bbe0554f2d9f178ec4d7fd2c7fa3a7200f4fd63ac9bb9489741a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:47:12Z), 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/GBDCA0500423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fd7650d9e57880628bec912add5811147b4695cbaf2c188d0b1d5ff89f46d4. 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/GBDCA0500425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56e7372759187d856dc68ec9c576e7e7fe2f06301fbf81a57f44ca90a955632. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/GBDCA0500426.
Prologus (with Steindór Andersen, Hilmar Örn Hilmarsson and María Huld Markan Sigfúsdóttir)
Odin's Raven Magic (with Steindór Andersen, Hilmar Örn Hilmarsson and María Huld Markan Sigfúsdóttir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac679199c18bb0d6f37e95b0105098e75e9a29478b954224f0fe1c7bc654132. 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/GBKEE1900131.
Alföður orkar (with Steindór Andersen, Hilmar Örn Hilmarsson and María Huld Markan Sigfúsdóttir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231facdc69edceeac2b3783f598c0dd9e9aa003784b8758b529494abfcef3626. 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/GBKEE1900132.
Dvergmál (with Steindór Andersen, Hilmar Örn Hilmarsson and María Huld Markan Sigfúsdóttir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0947b32d7e2cdf14f67ccefc8678f21b66d13c8ee1548dfb67b1bd71b01bfdec. 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/GBKEE1900133.
Stendur æva (with Steindór Andersen, Hilmar Örn Hilmarsson and María Huld Markan Sigfúsdóttir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594aeec7d663d10e382324a49f33a2d90d4a39443eaba7e729052bba07a37099. 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/GBKEE1900134.
Áss hinn hvíti (with Steindór Andersen, Hilmar Örn Hilmarsson and María Huld Markan Sigfúsdóttir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3682ff1a31f4ffcbd40c407c9d1891af5407efe8e4740438a4979e334f1ef7f3. 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/GBKEE1900135.
Hvert stefnir (with Steindór Andersen, Hilmar Örn Hilmarsson and María Huld Markan Sigfúsdóttir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fad4ece14b80b94373a81b4938b4d32163fe9b6db4f9e6eee5de9e87df77e70. 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/GBKEE1900136.
Spár eða spakmál (with Steindór Andersen, Hilmar Örn Hilmarsson and María Huld Markan Sigfúsdóttir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e200e5582be633ebe41f23f3d8994e9100b38d452fbb23e3f7fe693f5631e91. 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/GBKEE1900137.
Dagrenning (with Steindór Andersen, Hilmar Örn Hilmarsson and María Huld Markan Sigfúsdóttir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222ccdc213dde4ccee8b7e99d99d77c6c86d98f2ebbcfd6a9457337edb8ffaf8. 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/GBKEE1900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594aeec7d663d10e382324a49f33a2d90d4a39443eaba7e729052bba07a37099. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBKEE1900134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0947b32d7e2cdf14f67ccefc8678f21b66d13c8ee1548dfb67b1bd71b01bfdec. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBKEE1900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0947b32d7e2cdf14f67ccefc8678f21b66d13c8ee1548dfb67b1bd71b01bfdec. 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/GBKEE1900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331c530ffa705f2a5d152d7805f37bdad397952468bbeb3e171d44a455769dbf. 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/ISU111100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d8b4af162ea2617bb7cf87c03eb7ef3ee06de12be7a6f74b13d5b9e1847f56. 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/ISU111100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6ba8846873138afc9016dff1e7d79ea828f380b1402550a5b9b004a777ad9e. 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/ISU111100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de1e1eaeed80333a2556a1ffaaa075c00b71fa841b72fb64fdebef668e1e9c5. 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/ISU111100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb030e91c8c15206f3e99ead181a64020a3856d0c2fde0471074cde0ef6b00260. 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/ISU111100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8c08918c7972ab65978c74fea1c88251982594f7c18ae018d4cef1ea968a1a. 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/ISU111100108.
Eldhúsdagsræða Odds sterka — Fimmta ríma af Oddi sterka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa794d2bab1885e38511673089917d680414286db932f948c9deb381574f1cbc. 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/ISU111100103.
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 0x1701b54c94d2a869b9593dd5cb2f3f45e27e4c72fe8fafbd646c74e7fed92181. 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/ISU111100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98642fe11b343418304362b3ea77a6bc8e24eae066925d7666a34b4136fbceb7. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/ISU111100109.