Snowblood were a four-piece (sometimes five-piece) experimental sludge/post-metal/doom metal band from Glasgow, Scotland, formed in 2002. Their third and final self-titled album was released in 2009,
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 0xed7f0d765cdd3c3cb4f997e3570c9c6cf61226d9ce4d6a960d2295dad07fa6ea. 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/8de1329a-c4de-4d03-bb90-7697101c0e64.json and https://artists.proofprofile.net/proofs/artist/8de1329a-c4de-4d03-bb90-7697101c0e64.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 0x7e012e49fe351bb25f7b83093ebfab7bf18af7d0ad243820dc4c99ee46a41021. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCACZ1745577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2e573ddb6e63a93567e1a21696c8e63e1f346e225b4475746fb811ad885902. 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/TCADH1713732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f1e568092e2eac9ee4e3acba4a2935f3629c87be451c20d51855eaffd5b052. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TCADH1713734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0905b431fd1954f5b532b1ff6f31ca9ee5b69764da81095ffd8986405edd8e3a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCADH1713736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4d029c44f7f0d0a2c827fdb0676e6df8a4055afbbffbb72d8a573ffe78dd2b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCADH1713743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf435b9784a6e3bd36502123008cc19a4e3a2bc5308a98c81789e401a813ad53a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZMEM2065209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9807abf3a16efde99369328275e1960c154eb81cce25a11d381d1ef0472f7688. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZK6L2074343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e3cfbf2993519cf21568abd17e6f6e50693d3ee862617f281c5a460dce9bdc. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZMEM2065211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3784fcbc97357691cedc353f76c26ded4885d5948e456308e801f314a9e6a9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZMEM2065212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc3238b0a64bd0e8a9f4112ea91b782b7acc1bcb621fcdf87604ec280efa039. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZMEM2065213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdd6ae92905cebc0991cad86599dfe5a269e24c2f9582bf7b713f8b374cd246. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZTRX2263522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dd65f29ddc0877b507a086477a6805beeb61f199663d56260a0e71c4ec15a1. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/GBWUL2307408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771d72e4c2eb87fa8ad5fe35d2ea9acf17585fce945a4362d0e2b6a8fbacebc3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMFMG2345411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc9bf9532b1db1f36d61130217b8bd3f41e4eb68027fab328e56bd1bd9f091a. 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/QZWDD2421353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bd0abd69e842f9a4bd58119a68d9e79ef6f561ad137512db9cf399f63fd754. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZWDD2421362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dd65f29ddc0877b507a086477a6805beeb61f199663d56260a0e71c4ec15a1. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GBWUL2307408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3bf8da8e905e77b7104757e48ea62c376986d0424e66728e8c3cbf7465f363. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZWDD2429070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506019300cb48fb34e73d36eacc061333c6165e0bbb9a1f5091afc091517191c. 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/QZK6N2140093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8de461deba5c2e33f321490f398b9cb56629e836ad765e0cb7031b9bae4d03. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/FR2X42206059.