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 0x04684e57ca464c82ecce68d4564afc95aa437e504c53b43a6dae9f6e98d785a8. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/052aa3b2-e4db-4e69-9de5-41cb65d312c7.json and https://artists.proofprofile.net/proofs/artist/052aa3b2-e4db-4e69-9de5-41cb65d312c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Weihnachten Fällt Aus, Der Weihnachtsmann Ist Krank
Das Andere Weihnachtslied (Nikolaus Steht Vor Der Tür)
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 0xdd3cbf883e44556f3112e70da5a17afdfa6635ec1fc2672d008dff6bcc40aa32. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAJD2467988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a94dd03c02077142e4ce5ae120654583e49cf54f2afdccc74c161d738741e92. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCAJE2547878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3a4f694c2351f6781a9e8f413f9653e68e3b25993e2290ea82b3a0daa4aaf5. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/TCAJH2508496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89a96231bb09e761d534512cd0237e2b97cfa50c13eb60bf0b8b5412394b91b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAJF2569788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c99bec1da8ba7ac0e82bbd6b5c449c7d76dc056c07ce29b719f879ae608bf1. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAJI2536154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9341f413ff8f72f6b68dadba157c6962ee2ff474295523f375c64dd33af98b0. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/TCAJI2525090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9bf9e390cb16a77dc7e89386a27808ef999473e0cee443e46ab6b0e4b480be. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCAJH2592682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4f95d5328e91ee39fabe679eed5595b8e0b40572faa1af30d00a85401054f5. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TCAJH2592749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89a96231bb09e761d534512cd0237e2b97cfa50c13eb60bf0b8b5412394b91b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAJF2569788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7b64cd98d0287684dfa7c5989f382ec5d118370ec0072256e0dff9461625a5. 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/TCAJH2592830.
Happy Birthday (Don't Count the Candles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8e93f6adebc668e5b6de74b222413f364231b359c3ea96eae4b1d59512a192. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJO2539106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3805a0e0baadf89815065ecd98c73fbac9f91ba4ca91c0cb1f37bf0916287f4. 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/TCAJN2539169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f6c11f44147a9febf6ff001a14bea8426eb93e6aaa8dd528d01638b9737dac. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCAJN2539258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa437c326728f71de2794af0e00ff43d4ffd20cdb814db6719242db9ff2a9fb15. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAJN2539294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96447eefe9687ab2c1e99fa5db2c9ffd5dbcd973c243423d7ba5828bd7ea88c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAJN2539366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7256c63ae5b03524ef299d7259d38a106d5f454350639bddf280f865d09263. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAJN2539455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174150c335d059b3007dc4ac55a6318ac882fe266b32a520088301294f8700d2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAJN2539497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9c48fb0ab5b67278cf0710b9dcb1034afb471481e3c05dabee54afbf5086ba. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAJN2539536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63805f2bc89584a0c10f792f07fb260989a9d8be7b17ef397b4a7df6adac338. 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/TCAJN2539574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49823c1f17b2d3d0b999ed269792d7db9348d5b5c0f2e9e55a359bad316bf80. 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/TCAJN2539676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce54eb856832eb51eb339014f72e0531ff81c5ab0e5037e42b4020039b9e3e8d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAJO2539792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3cbf883e44556f3112e70da5a17afdfa6635ec1fc2672d008dff6bcc40aa32. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAJD2467988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b1e0f6b216697f3e55b5bbdaa1d2b15966b50068a312c8c4a863fc1a0d768f. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:39:55Z), 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/TCAJN2539933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c570ed8c6372c16ab9a3dc5361585203df0fd904fa6b501ab9adbed84a6ca6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAJK2576287.