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 0xa3f02c5babf0ae832c12eba6be0e44000a2c56de201307c090a78aab71dda158. 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/f73714af-cc28-4c26-9a26-90d77126cee2.json and https://artists.proofprofile.net/proofs/artist/f73714af-cc28-4c26-9a26-90d77126cee2.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 0xa3ff476b79ea87bafe20b50907258fffa7d636f9a122419479fe289aa50cc0fd. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:40:07Z), 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/DK4YA1601705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe523ddde5b5eaf492e8198b74a145d24f8aea29082f7d269789ccff7c79662f0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKUM72300449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6c63389d55da16efdc6e060630acf9f51268139a62291775e321350cadf9a2. 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/DK4YA2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bfd3b1c68a2fc445cdffe8ef7350a60ef4b1f4bf119d1eef03575c800c67ef. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DK4YA2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7168b175ea24692497aa8ecc36442d5dc490fc598c417b9f84168fb0ea026f. 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/DK4YA2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06d3406fb48e4bfa50d8d92f36a299eb231ecce07658858ec5f1d5fbf612fbf. 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/DK4YA2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd343d37b1709b4f1a9f226c6ab7bb594070c54e936a8ae319a6c1ccedebafff0. 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/DK4YA2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdeb833363603727003c60fd8f25ab776c4a86a608d3a4e4b78f7d6e115b4d9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DK4YA2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa866d9922f4bf20c937dcdd442d7507e0d0fc1dccebb996091a6096c18bc5fd1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DK4YA2100007.
Dyckman (feat. Semih Automatisk & Statmilz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9d12594264202552e9a9957bf92da5eedc7e3da421c6034fea3a1206672f4a. 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/DK4YA2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea91da3d73e0a402221ee768fc48f8d570b81cc9b97269c6c3c0e366f578c21c. 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/DK4YA2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee79eba01c2e23a37e06bad62501a4d81fb60cc6d81eaee58081e6e9812ce2e. 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/DK4YA2110104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f263040ede61334db5b0237431d4cdc331667b1b5aca10d0b3322ebe325e6f9. 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/DK4YA2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4533f5e1dc2e3b3162fa812d3893359a12f58d8f7d46099ac650e552b6ae0b0. 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/DK4YA2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e3804af76e5ad085042bfa75e1ea0603699732951497314c797e22f9197332. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DK4YA2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71c8bfa68aa330c5adef3e878e709d8197fa1e697c252f4f0a60ee31ec41a3d. 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/DKUM72200587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee79eba01c2e23a37e06bad62501a4d81fb60cc6d81eaee58081e6e9812ce2e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DK4YA2110104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149c32fc68c2c932f82c225e11206995d8c2791772c884ab1b005339c457880c. 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/DK4YA2110103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553df51e6d58c0b8957e9e8cd4f8efda60a7cc94c975b1fc4eb81668f47857ba. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DK4YA2110101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8f5a7102ced3fec1e411c4354152f80ce3fe4900414c8960232c2a734fbd94. 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/DK4YA2110102.