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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee6c295b475845267eb7b88c2c12fc9e67b3121c09e84ab03cb572a876b8c91. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2af6028-aa90-49f1-94fe-f686cf435333.json and https://artists.proofprofile.net/proofs/artist/f2af6028-aa90-49f1-94fe-f686cf435333.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a52d3caf1361c71dad4472e1b674332b01d19ed27b4ca7b8d0a8ac254742a9. 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/QM7281985392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8beb4f6db0229032d45291c532ddee8564ebd2c302f64f625aa80385a46a518. 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/DKABA1000978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d955e65247714dbaff1745f44fcbcbf516ea82a0f55712a71b1bad805cde9d0. 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/DKABA1000976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e07c45fdcc84ed0f05c67d3537c4f0fae9819e1f169f705e1d5f9d8b50cad3b. 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/DKABA9901223.
Stjerneskud (Når lysene tændes i parken)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f98baa1b2d99ba9d8f4e5b9098a7dd730471ac46d09f3ea3b9ef56913d40266. 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/DKABA1000154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06866f03b999805fae0c067eea58fcc3a7f6b1e2b8ee3ff3925446d8c815fca0. 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/DKABA0108601.
Tidsrejsen – Julemusik og julekalendersange
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4951dbbcddd3d464d54e51c46a81238f2086a2473110041e93700743a8249758. 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/DKBHC9700402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb817845df818e9b223cc988068c4fce89ec4581f68fb71585d9c3fae67fa7985. 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/DKBHC9700403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f9b2277bb7272fe6bdcb368a803f6aa6e1e58b25070aa284e36ef0a88c5c89. 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/DKBHC9700404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c56cc4cce6fcf142e07b647df40c0a316b2a4b544426332ba75e7618834467. 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/DKBHC9700405.
For Fuld Musik - 25 Danske Hits Fra Film Og TV
Danske Hits Igen - en hyldest til den danske sang
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2a8cd21eedc4f5af10c1f2e35b69f063d2dc5679129050a78f0b86c41dca59. 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/DKKN71000601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9215a7f0fec80ea6cfae07ce4d30345c4a4381a5cd373de3b51074f2c8477c54. 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/DKKN71000605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2be48f19fbc6d00b6401c9dd1d889d5ab079c2ae0efe6c782bc11b30468d267. 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/DKKN71000606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbcc0e4d6aa4520e5f1a638ec76409386687d43892906109a0e587834ea99ba. 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/DKKN71000607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c31be35b62ccf26587c1c83265c910820e99282a7540b57e0053b0e49db5cc. 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/DKAZA1401248.
Jul for børn - Den bedste julemusik for det mindste
Julemusik til børn – De bedste danske julesange
Børne jule sange - Julemusik for de mindste
Danske børnejulesange – Julemusik for børn
Julesange til børn – Den bedste danske julemusik
Jul for det mindste - De bedste danske julesange
Børnejul – Den bedste julemusik for det mindste
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bad7ee5d244d3d7b97b346aae3f1ca9884e760f61120ee062a2ec84fa1b9921. 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/DKBKA0300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867a6d20510132389ced313313b6b7dc7186f2202f1678a0df03b6ec6075bc53. 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/DKBKA0400235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dca12922fc1426326ff1f108694dd02668999bc84be793bf666102b6db3766. 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/DKABA0503803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8722845bf8c47ec16c4969a3da475460ae0f36d8ff3d061cf1387e14bdf88b0c. 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/DKABA0503804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109580ef58d40104f369003ed4126e96f75db7ebf95e11bb7d08556b39bc062c. 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/DKABA0503805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8948833b68d993de00fe90c061cc5cb87db71c169b9533704e5dbc433e293e0f. 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/DKABA0503806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831864a750e20396b6a7d3d1419fc73c25b705f35f5b249dcc752dc65b65e2ca. 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/DKABA0503808.
Der Var Engang En Dreng Der Fik En Lillesøster Med Vinger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde156258c3447c3c8fe6b63d2edbbab1e532324b2c1719817dd2bbd5fb2122eb. 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/DKBR70602302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c209b2f09f4a12475cd20532ac8faffa2b607c7d158e773eb77d3b09e0ce402. 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/DKBR70602303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8254cbe3acd6456e858513e9bc8763815e0f13b32deab04cda7b27d2479de4. 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/DKBR70602304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712203cc99799ad337af4344d784854311ff05cf662e5b0684f0c0d5dc5b3491. 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/DKBR70602306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558bc35e5457c4031dfcef1adc8dee1a859fb28aa9af97756f86ad3f3d90e359. 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/DKBR70602307.