Celtic Frost () was a Swiss extreme metal band from Zürich. Their early work had a strong influence on the development of extreme metal, especially the death, black and doom metal genres,Bukszpan, Dan
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 0xc03c1ab56cbfb7097d64feb79a6d3846aeecbd4c29c313132bfeaca87b893309. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/233d3ef9-5966-4a4d-a67f-798081119251.json and https://artists.proofprofile.net/proofs/artist/233d3ef9-5966-4a4d-a67f-798081119251.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 0x1b6b82c14d3dde428106fab9876d7e76fd7392c8a2944de5676ca70e91888c90. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-03T01:37:49Z), 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/DEA249918011.
In The Chapel, In The Moonlight (The Collector's Celtic Frost)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc039a8a6f9ddf4349ba43c3c66d74cf65fdf2449c2a57663bbd660da4299005c. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:30:44Z), 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/DEA249919004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9200f1b185c98e3653e2c5973b9f0a820458463e96e1615528b591ba578a009. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/DEA249919006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12685f7a96a23632c0e8f8a2b3591d6a52528bc9f4f579ab49531e48d7c103d2. 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/DEA249919007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a87c503295a4b1b484b7886406b27840a03c4ca7358c4f48d6bee7d3ac8dbde. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/DEA249919009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62dcf4eb4b3e8e8bfe46405f555b12abd9623b05af0c27c0de8ed242faa46d3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEA249919010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7563fedc452b22ff94bfc6047cda04eda6c31b759adfe11824e4061ff968d3be. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/DEA249919011.
Into the Pandemonium (Bonus Track Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245bbb108014b9b36245f24980a028ba29a97f756f005ed5798cba4b8f55fe73. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DEA249920003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96112eea992de58d9578b677d7a2658e0433dc7cdd0dd51fd33c6700bc606f3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEA249920004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50c679648a2729bebe43c87f7cde77a78cdde53cc218c563a7b2544aebcef6a. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:51:18Z), 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/DEA249920005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc88f9a6f6426dab84147ae888b8d1619dc59bda862e20dff6779f18096b9490. 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/DEA249920006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729848c54ce74665ba5dbf2f2039bfe901cbbd9387ed574fec9f4c2cf007fa90. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEA249920007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a9a6fc144c6efc525f6660ccd0c60594c64996936080dda13e324dc9ed41aa. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/DEA249920008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e12bf4bd8dc13784d85aacfcdd4dbe3416f2af659cb272070dcbdc2f5acb8df. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/DEA249920009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63604dbcc26707ed878a7f7e1900672dbb1fee450948375c2aeb62dd472efc5e. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DEA249921007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab7487b1c9323c171fa982a6bfded33da03da90b62b7543320fe553e29ad265. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/US4E40620009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b5726a4ffa192af87c77042739739237eeab6b0b140b230ed1e931b76a984a. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/US4E40620011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fbd8aad2682fa43d75784f59e88ae08b71e9a13bb96c6d16c110c0ceaebb47. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEA249917005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b36805f522b905394b7935dd49934529fb641fac501859a3dc0650860f61d5. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/DEA249917004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3ffa058a3d680ee54c7fb599c2003a8b45791572f7f803cb23e10b650e5fab. 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/DEA249917011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff03e76b22c1d8127c317c241b51d03382995c91cb9cc1aee32609ffdb92a659. 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/DEA249918002.