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 0xe2f0433e4d1fdb39d91d8ddcadf5c160e03681b3485bdd73420c3e24b98d2e96. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7468bab7-53d5-4168-8811-92009f69b366.json and https://artists.proofprofile.net/proofs/artist/7468bab7-53d5-4168-8811-92009f69b366.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 0x556fca365c38392f039f6d535b24e3ab3c3880ef692e8bd86b3835f243ab2dd7. 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/DKUM72300501.
Lad Os Alle Sidde (feat. Niels Hausgaard)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44844a0d0a7d841b7193968ced01e3340bd2f0eb75fda495b6c6021f729e705. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DKUM72300502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b35df1edb44f3de655115a39682254c156ce312c47e1a3aba6221a1c442be5f. 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/DKUM72300233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f12b6abe9d11e7208e870adb7c2eaf7ea3b5dce5e98524cb45a9b82bb805cd. 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/DKUM72300504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2ffd2c923ba457c3081ba79b8ec2bc97821297bcedcd08b0e8abe328a3f2a1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DKUM72300505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952c05297c38e60995210298ba081d39e3eb3652c951f2960d0b42d1977c37de. 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/DKUM72300506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e7b5ec7cefb284dc75f36c27dff82e85b4f0d349eb34f8bebe414e95798a84. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DKUM72300507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe667215159fb91726ff6bcdc9bf72b31f3f84b9dad203ea6dd3cbbbaa37a4165. 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/DKUM72300430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a23d032673094ba0e14024a6dd69facc966284ec2719dd73349ead8514210da. 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/DKBR22401401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b35df1edb44f3de655115a39682254c156ce312c47e1a3aba6221a1c442be5f. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/DKUM72300233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11893ed1b5a11202527dc984ecde30aacaf2fbaf271e1aeaeeb8184cdddabf68. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/DKUM72100431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070bb5887883b83c64bb156f825d7c86201aaf09226198fbf5fafae52c6760f1. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DKUM72100178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070bb5887883b83c64bb156f825d7c86201aaf09226198fbf5fafae52c6760f1. 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/DKUM72100178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046933dbf18d1d153c442028639e412984de5a9708df60c8eecc78623f752c46. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DKUM72000255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c905b925b6fc50d693eb3e51527c22c774a0494fd9cb2fd288a2f8709646f6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DKUM72000356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6d39289b67825efb4d31a31e523f08310ae438d16404422f3e8c6892bd8468. 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/DKUM72000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046933dbf18d1d153c442028639e412984de5a9708df60c8eecc78623f752c46. 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/DKUM72000255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6d39289b67825efb4d31a31e523f08310ae438d16404422f3e8c6892bd8468. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DKUM72000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea76f031669bc37a589380594faa618787a29530ee0ced245b38fee698a072b8. 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/DKN021900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b2bf62e9729d3e52bbd4b6d3b07b5499d3d9350c7bd1d90fe30dbb4f5ffde9. 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/DKN021800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a767aad24e53b913a6dc7d6a3133c76238c560beacf8ab1bfdff90ebfeef77. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DKBR22301211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a23d032673094ba0e14024a6dd69facc966284ec2719dd73349ead8514210da. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DKBR22401401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cd7e30d46a65dea6ef99952812eb2be975f4f1a5024064d0a1823a60ff7319. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKUM72500118.