Sólstafir is an Icelandic post-metal band formed in 1995 and currently signed to Century Media. Originally a black metal band, they transitioned to a post-metal-influenced style with slight traces of
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 0xa8f4268e42af760a0083b1194856121d2cc0668f3fd011939dd4ff70decdb63b. 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/91e123bd-6d17-480e-b39c-d7625fedb16d.json and https://artists.proofprofile.net/proofs/artist/91e123bd-6d17-480e-b39c-d7625fedb16d.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 0xb7615355ba1564b3d398400d87cefcb5d3d7525bebe4e5fb6e1c65e41b5533ef. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FIUM71202183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040f16e45d23154a43fad59008b4def0806c8b64010cc54f85284d702eaf0a29. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FIUM70801866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4445386ecb3809ed22ce0c3f77a1b5cf9b359310dc7e765e397840a60dd2a31b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FIUM70801867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2143aa8ff6a51007df02c62e9a966a5597c66a7d795b1b5205541afaa9eb49. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FIUM70801868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb168052ffbff12cdc0613bba354e60251183d8779b7c2904a8668023c0356e. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/FIUM70801869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a6b7526bc1e83dcf81484c67f4975bef9764282f827f518c2271645c70e8a7. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/FIUM70801872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc31880e0a2457a3f68642caa7948befb5b7e94aa35bf6f01334531747b5225. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FIUM70801873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffde14c35460500145dbb8962201dfd9e7e998a492c21ebe3d9aaef371c22d11. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:42:38Z), 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/FR33T1124707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f813e7ba4ec08f3d62e65ce3f8a5631a02b334f4ba4ece3d787129a16236419. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/FR33T1124708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188c55fd4745c54224bb933cb37b25d2f4d0ba5841b887aaed56a1b696faf96b. 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/FR33T1124709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc08ab23363d0ffaa342ae6e957595431440eabe5cec1db53340389688839021. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/FR33T1124710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ce8b0498bbbcae16b8a6e15988d586fe0492935fc88eab7c1196828fe4a5de. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:09:22Z), 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/FR33T1124704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd547b231b29cd2b76b929c76b665f98cb351fad095b458fe65131297843cecbf. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/FR33T1124705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf255986a5239cc84efdc3fb9b9c605bd762e9043ce35710c10c3dad67746b770. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR33T1124706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc0ac484dadb59ccbf315b6864d9b0a3f144792aef0c72eaf8f37f57ceccc03. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/FR33T1433106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9e3974f470715b411b52ec633cd97093cf5551f316ff56c55e6ab047a005f9. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FR33T1433108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d87d8f3c7de3a8db66978cb8a03597c6b83112dfec9f665ff5c004187fc3f45. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/FR33T1741202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b065ade060e54bbf2d27be7955f85c845eaecd4a3cdf9a4848e4619267d4c8. 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/FR33T1741208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a67280b1aa7c303c629bc4f5a44085527b88e5836f9f7bced70dc50a8e7255. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/FR33T1741209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfe6bfc03164a260ff40c4e5ee284be3b4f2979bf5c7dc37e64cfa71a01d7e9. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FR33T1741210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3f55a643cc32d7a2becdbe43cd5741a7b448b08f9d5c32fe40eaf4952d2041. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR33T1741211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe279cb8bf8bb1a43699d4f92a5fd1ed559d767635503042da65f832a1514bfd7. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/FR33T1741212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62a680dff5b7d59a0498e2ff5cdac4c23b8ec93792e835b9abb4119638c3cb5. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/FR33T2057201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3384aadb163dedc829b89fa0063ebb56551bcbccecbfd584b04ee3b4714161a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR33T2057203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4231548d394f84531192aae6b284fe31e4138462b908e3a2d363fad7d92054cd. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/FR33T2057204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ef13f2a3a71ca14208ca3f78701d68afc0648bf0a1e30ff90d7fc215b2967c. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/FR33T2057205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567b17d2e0f48b80b8e87574ee2b54c4bb5ef08bcfdba4383a6f0cc005411b15. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR33T2057206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d99be3fab80215b88f1d51d8a5ba8e84b66ebca7c0f52d194587da1590dc72. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FR33T2057207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b99031b264bbe8a589a83a38eca9442aab94ae91f05f5203722b899234e7f7. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:53:23Z), 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/FR33T2057208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f30c87e42dcf941602b6997fe280f1c1149a5a96a693353e6841bd6b724c17. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/FR33T2057209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3815db6870138e1a9629563c42e6c1779a3c2e0a953324063e54a8c6261effa3. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/GBDHC2448501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8a53046f71236b2e9028cdbd6152206fff8cf27dd1327f88e10ad10127b966. 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/GBDHC2448503.