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 0xce83991d991ea3470c227d1bbf084cbf9ccf03b4d04c2ca32d2c3d6a94ea00e2. 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/719c6a6b-f580-49ae-a8c9-cd73f5220aef.json and https://artists.proofprofile.net/proofs/artist/719c6a6b-f580-49ae-a8c9-cd73f5220aef.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 0x8aa9381c9b222c93f338b2fdbe5695466cc8361a92957f84546dfb681942fdbd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEAMF0300676.
En tröstesam visa till idealisten och läraren Angelman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1feccae5438943f757eb6acffb63f0e057c6bb37481190608ea32e0b3ec377ae. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/SEAMA0900088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8393e3bd0fe216797f477edc59368ccd9163d71b5da70b8ff883e8fb43761668. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:19:11Z), 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/SEAMA0900091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f559e0ef34abdc9954b75ebe438ad98e58888126cb55b37d7982cd0658b07c0. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/SEAMA0900092.
Julvisa i Finnmarken (att sjungas vid bordet till mörkt öl)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9f8e46f0138e8ac8f08ed571598272e8249b83e6933730fe77fe12abba406b. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/SEAMF6700235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc35b03f20cb36597772402c56b906cf6ed86f7f7d8e35bdc536154be5c5ce9. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/SEAMA0900093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa937f163ed9de1c31b875eca2a4976d8347d59ea77bf7b214859832356804c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEAMF0400118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d8381f5568d98bca8b8d8ff8f7d09ae424f48c69acc5243ddfd1ad110e6acd. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/SEUM71201693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b9b8bf544d446266a6296cc5411696915030f9b663f483286ffe67726345d9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:01:38Z), 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/SEUM71201714.
Föreställning! (Live at Södra teatern, Stockholm, Sweden / 1972)
En kabaret, en show, ett tivoli (Live at Jarlateatern, Stockholm, Sweden / 1975)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081c123e3d019ef28e4d5345ab9a6e7d48a16b4b765673d1267be8a72960b86f. 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/SEAMM6500530.
Gjort e' gjort, glöm mig fort - Alt. version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05be9a09c5e9203fa78af1057dd6a679a38e658644b61fae1744f1870445582d. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:49:59Z), 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/SEPQA1500808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d90a4b740064acf7c70696e4d8c2f212af3ec71e45105a2329f36235b6a0abe. 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/SE3DA2505101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7a545b61fa35834d2358212c3967dc721a48b654a8a5faae5750d625ffaac5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE3DA2505102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b31cfcfd9d243e6123a80294384544a32fd341d220a6dbdb41848c8ae675360. 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/SE3DA2505103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4eb0fa50b1205ef3af5c7851c208eff51c64c9d7c9c2eb8e180dec8d31931c. 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/SE3DA2505104.
Stora snapsvise - 99 snapsvisor - för jul, midsommar & kräftskiva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4481dc35bd0004be200a26d75d81c37052a14eee85c6e27554771d014fe5c16. 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/SEAMA9563070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6ebf6130d24e775cbb3e8e794f67755a6487bd15f23aade7c56909899c1eb4. 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/SEAMA9563290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081c123e3d019ef28e4d5345ab9a6e7d48a16b4b765673d1267be8a72960b86f. 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/SEAMM6500530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc807a45f715ab927868ad4df1292fc02c24ed38275ce2b0fca60558ea6d365f0. 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/SEAYG7202010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39af0db0a667313c7c70ce4b7b85d3256d77e00eb5ec7fe87c5bff4704ba4cc4. 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/SEAMA6721190.