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 0x9018e4aa91eb08019447fdbd201c54b38775f7881f7e8dc0a75f5071635eabaf. 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/f6917e4e-456d-484a-a70d-797c2e77a2bd.json and https://artists.proofprofile.net/proofs/artist/f6917e4e-456d-484a-a70d-797c2e77a2bd.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 0x11cb5ce170da166074da1e2d403911df8eaea4affaadd392e167058424bfce84. 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/SEPQM0611108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3110fff11c65dcceef53d4d51c90f01fb86da9d1742364f3ec13c0d463b2bf2. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/SEPQM0611115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c47d255e4fb8377981fb95939162ad1b11a93a0b15cfc42ccba09a917f54b1d. 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/SEPQM0611120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca5e2cbb7c00f350325c485eb65b243b3a5a2e04093778be1b64779ea2dfbaa. 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/SEPQM0800247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de6a95d0ef907f7239b5ab1b497c5fefecbd8891ba2366e32761ea3586f67a1. 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/SEPQM0611121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1ea967be51e148ce1e8ab756f6960f1db8ba9a399f9ec8cbc16bbb8825d7a0. 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/SEPQM0611130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1ea967be51e148ce1e8ab756f6960f1db8ba9a399f9ec8cbc16bbb8825d7a0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0611130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f8a7b96de3399da4e009b0fe617243d267b982abcacc47f1f9448ea0a3b63f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0611122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ce66f9d57d782fef6d2b191f43331d19869c16056533186c98630a7134aa4a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0611126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc846192688f62c72b0bf111424c27eeceabf9e5d61bd100d3cb8a953a17f750. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0611128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c10e602b878eea1e9314e0f3f68ff88416b7a975d121c2e7e496ebb35495c8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0800165.
Sveriges Bästa Dansband - Berts Favoriter Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cb5ce170da166074da1e2d403911df8eaea4affaadd392e167058424bfce84. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0611108.
Sveriges Bästa Dansband - Berts Favoriter Vol. 3
Sveriges Bästa Dansband - Berts Favoriter Vol. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef257a0f2b1802ef8e4c7a1849d16a6f91cc5aa3a2016f801949d11814aac83. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0614537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31095ec604efbb04d1658b5c75bb6bd850d11320cba6e9a35d9253a1ffb61b3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0613618.
I Afton Dans 11 (New correct tracklist/audio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de6a95d0ef907f7239b5ab1b497c5fefecbd8891ba2366e32761ea3586f67a1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0611121.
Sveriges Bästa Dansband - Berts Favoriter Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7db0baa34fb5c29ea0a0471d94b981497746902e88d7e6e0122986824f32a7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0611106.