Crucified Barbara are an all-female Swedish hard rock and heavy metal band, formed in Stockholm in 1998. Background Crucified Barbara started out in 1998 as a punk rock band, but soon they changed th
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 0x8b8881b9f8378f50d4221e854d70fd9eeef13ca74518a0b03c164de5fd8c20bb. 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/cb52bd30-63ac-47c0-bb4d-8ebeb2c9a19f.json and https://artists.proofprofile.net/proofs/artist/cb52bd30-63ac-47c0-bb4d-8ebeb2c9a19f.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 0xb3f5ddb7c0b7f130abe52996f739675d4ba01ab48e7e20222af27bc383250ab9. 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/USJ3V0651903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca881810255453e8fe8b5c828f7575b5d3b7208c383fa4f9e25b1aced10bf1a5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USJ3V0651904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bea38f9196ab14cd0187a103933b2fd5e468871e52c5b4a7347a9c9947c443. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USJ3V0651905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff183f9f4069fa81fb6fda1e1f74c55358e03a8acd604057d3f8b1f58c345f6. 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/USJ3V0651906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b333943d45422a79f245251309d6e15ab75ca7ab4879969621372224299844. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T01:09:53Z), 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/USJ3V0651908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77671fc14c8a942fa484a921544db0dfaeb0ad66ff6f58cbcf65a7d1a7b172b7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USJ3V0651915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634f9f44bb51bc658cc28c71be4c4701f6fd27196cc9bf1d615f85b97e09d288. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USJ3V0912202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2404c5461bf57742bafb771370f01f3b1fc8c555b331a2d67347f5c80b4c6c54. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/USJ3V0912205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe98aebc860761e601d71d717fb8f53a35e58196b641b900a782be67139d3268. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/SEWFK1000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f9151085ee0393d6039adfb6aa1eb707f82837858dd32f16d1ceb9068f8484. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEWFK1200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f42a2ed926cb7ea6eb1e33073e88cf6b664e76c90f09523813d5ee486e3c5e4. 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/SEWFK1200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cecded7e73d0077530d8624fc7f37e7df643842a226cb1fdeaba5e0fa8dd1a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SEWFK1200303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832a138d2a16b97dbbb00cb65373ad1a8888db32af52c51056f021fceb4dee1d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SEWFK1200307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7d46c3e3b482f7d85040e63bf114ca3d4f5f6f82a2915d0ce2adfbbc1de060. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/SEXTE1400605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96294f31d4bb79266a87cedbe4fc970576d9cc49604cf4a37409902c5ef76912. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/SEXTE1400613.
Play Me Hard (The Bachelor's Guitar) - Remaster 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef35a4babf1ffb09e59f6bbdccfcb2dfb99b8474c8edfeb1028f23d60b1a4163. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/SEWFK2502001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd196ffd155ea407de542bce5ad16ea036a7a08288dd22d7b63b3d71c50833db8. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/SEWFK2502002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d76dd8edaa68dbc50c40d6cc01759cdd04847241970099c8a612da7d5d3fbd3. 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/SEWFK2502003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3890393088037c348c5af4018a3f6d081a21e552ab62a0f466ddff7d7d434f. 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/SEWFK2502004.
I Need A Cowboy From Hell - Remaster 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78caca904c12fa8216d83028d655d85e3c71b48b4e2149716f204da430eeab4a. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/SEWFK2502005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567b2b9920aae44e5321109ebfd694688a86ddea963a3061663ffd670244fd69. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/SEWFK2502006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2be35cc3befcee76a1e7fa41bbd4c8163374f8b1ce7313409b370c83d6b976. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/SEWFK2502007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cef2cf445d50a5d12300eafddad696c29a4d616ba626c82f24811afe287237. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/SEWFK2502008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb921454e55322a49cca76cb11d17c367ca03218990cbb22ed39b65174f05c0df. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/SEWFK2502009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc5fce0f512fb06da13f52e37b9fe5ddca3f7c6a4ed16072a219148696925af. 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/SEWFK2502010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5766ba011ed90a20aef967593ecdef56f95c3094a91afa935f3d19ee44a142aa. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/SEWFK2502011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3785cca1f3ec1486b2ac0865b7543d7034a494c80fc914928525f55d5763349. 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/FR6V80361231.