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 0x3d9f889f40af36084081f9f9a6b5e76e9db4d3a0ffa84a3808c3dcdc3d3725d0. 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/659c847c-1919-437f-81c7-8cec18ecd701.json and https://artists.proofprofile.net/proofs/artist/659c847c-1919-437f-81c7-8cec18ecd701.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 0x7c458fbd5aeec4bfcaa4835b0952a7442a440ff05de59158dc58a13e91820df3. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMFME1334205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c048c40074b421b8115d0b3bc622a5121ee2d5b6498424ab575e3693d41eae. 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/QMFME1334207.
Lotusblomma - Musik för Positivt Tänkande, Lycka och Lycka Till
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a024de564f073fc6247eabdcfcabe31341cede7659d99f09f1eff47f9d0769. 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/SE3T61701705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48136cb5747812ea3a26c616290ed5266c5a0c344c3a631ea520609dedf93d6e. 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/SE3T61701714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f20ee015298aeb6ea854918a88bae069fdc4d5515d4f82041f650ad360ef17d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:14:54Z), 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/SE3T61702704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eac5611f10009d8e8bf7147bee4f9d5c2fd39afbad34ec4487a64c8d9f9ce4c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/SE3T61702706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898e2c7f67f81f4aa40ddccb704a323046fd84a716062e90a3ebdf0ee2f143aa. 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/SE3T61702709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe198d226e107f6f8392df554b77a5f2fe9792561096c1765ea221217f3cc172f. 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/SE3T61702710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9c19b66298d85e0a8494d080cfc69700d35665ab1a87c35df8d5119f293701. 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/SE3T61702717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0d485f9d463726574bb613be773572ab40e41fd7cf748ddcb355e8b307c91a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:22:39Z), 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/SE3T61702719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb009bec6c4ac9bddbc6c230fffdd7ea2da79a0a3843128112f9dce5240f75773. 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/SE3T61800901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc120a4b5371d0df2ae78508f6489137a3bc86591484c3fa191dfec32060127. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/SE3T61800908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328317b3d41046ccbde4796d6b9831a29cb42af6bc435818c1f0ca3cd2134db7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SE3T61701708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9831b7e28832b6fb7880e2a843e08857d2bd6d6d08cd9ec97c5b41a13b77cc35. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:25:20Z), 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/SE3T61701707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8377d2d6ab677a2d9fcb9dca3852bc88a5b1730130b99db3312b262e88c88f0. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/SE3T61802706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc60cfa700dbf9dc1a50f0904e83c181b11cc81ff4cd66d73089f54edf498e61. 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/SE3T61903508.
Avslappnande fågelsång tidig sommarmorgon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d934dc213f95dccd81431c9d5c5109e7ed34ea6d9f44c56c401581dd262bb14. 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/SE3T62000201.
Vågskvalp mot strand Skärgård (lång version)
Regn mot terasstak sommar (lång version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c79b926b7a7e77fd8b37f77a49e2b5201b4714ec52fe9dfc8c5f76ca9e611d. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SE3T62103604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1c8a8c68b64fb852d2d4436b9c4a500c579c5db1fd71fea2fc5e54181191ad. 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/SE3T62103605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd53372bab8b3f14c2f12923068df2978cf29a70f8bb2fac41e85a0522b0353f. 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/SE3T62103607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c634732bee8f75eeee90898bb5964c8e72697db2c5cd974ea9130b4ed86019. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/SE3T62103805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350562d9a595bef56bd84edf9f392581c427bd99f75a1f21bcf5c03e7379fa2e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE3T62103808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c52816ce4e6706dd7996a02511d52ed5db03743a04e3af02b64169bb081d9f1. 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/SE3T62103809.
Avslappnande ljud av vågor (Långa versioner)
Avslappnande Fågelsång Tidig Sommarmorgon (Lång Version)