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 0xfa9d98d70e86febd5ad74955c2b415aa6fa17040a8a79a05abcbdb7b4a0569b2. 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/ecda668c-f0e5-4f3b-8d64-fd534f4d72e8.json and https://artists.proofprofile.net/proofs/artist/ecda668c-f0e5-4f3b-8d64-fd534f4d72e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Äntligen solsken (Med Kaliffa från Hoffmaestro)
Äntligen Solsken (Hoffmaestro Reggae Version)
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 0x2320f52215bebaf0dc20db16b342a008f92bd92b59ba179f1e8dee7300ed1646. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEVJH1400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c17a232f2619629a34fef9dec2814f4c8dc83d588295eca44609ce13f88cc2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEVJH1400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9aadc8ea82d889b7fbb34fa2cb201b0d4604970603808eda916a9d067659285. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEVJH1400303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5591cc3777c379ce533f7bd54f949b532a71f3c6f507f66abfa750982ac33d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEVJH1400304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2dda23af02e7b44f8bdd59a4ecec0e1fbe51831c52fce6adc9191efae45dbd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEVJH1400305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf354c21ee4b2967c8d07894066ec191388fdeb12b55cefa061cf5856084fdc60. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEVJH1204702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe663212110358c18ebf356f80e71e39f02636994fcf9bd1eec8f105879e07c50. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEVJH1400307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8a7517caed86e0904f6027ea759e52dd5eab4754c966743944b617b70bcb81. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEVJH1205801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b943fadc3e3918911a62cd5aaa778e2f6bf157c1a7d87ed802d87c42c3497f1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEVJH1400309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550c398febc43ec0ddc2bb7fb031c81077cca607dd313a643c69e1158816fd41. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEVJH1301101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c98ea6a8d2c506332c1372916f09a4416388302e2e1b6d343a4958d9157a7d0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEVJH1302601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216873860a35d72b3175aeda2fd173da38ae4e9950d545a6c125733a51a2d9e9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEVJH1304201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9a2161f0a5263a3b4344056ef0869edfa8ca9e9027db84bd9e0551317f734c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEVJH1400313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5232e86b872f03f978c44a98187b1b707073946673778e6ebb672a501ebef2f2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEVJH1400314.
Äntligen solsken - Hoffmaestro Reggae Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35e274de35982dd22908f56bd96590d865d91a834d9586fc34df782bf910137. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEVJH1304301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fb39b1a26201abdd0b627811f868b99726c754831bcd12484a9978a9a046ea. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SE3SA1601201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6af9113a18161314c5b5963d0e5b1393d1176226775c8b757ddb1999239eccd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SE3SA1800601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c1ffa8f548656803913cee32d2d542508dee06b017364237407131baa862a0. 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/SE3SA1803501.
Sprungit här (feat. SödraSidan & Max Peezay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb1f15bbba489e58412ae3ce5f3e91d1dd7a0e00877af99ef16f77a45832d1d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEYOK1301369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d882daefbb9af85f5cef8319536a10dd21f405b118ff5ea8b0538bdcd5f56c7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEUM71600995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e83e546661400ce05f607511c6dc537435183d1899985c8540fb3d7b72d584. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE4YJ1900601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c396a903c4825a64acb523deaf768041986b504d643557ef37a1ce8b9f5d891. 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/SE3GO1500302.