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 0xa9da40ea7b06842920573634941d4cba725eaf4d8356045246eed335db6c61d7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/996a5f1c-937c-489f-9b2b-becd153e8e41.json and https://artists.proofprofile.net/proofs/artist/996a5f1c-937c-489f-9b2b-becd153e8e41.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ngempela (feat. Kabza De Small & Boohle)
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 0xbbdc0674963c766292303fc6785879b2d602a1b550a926c24cc59e323d82a80b. 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/ZB88P2200132.
Thuma Mina (feat. Kabza De Small, Young Stunna & Da Muziqal Chef)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a10aca10f9c94f16dbbe9ddc99d8800e1bfb0b250d44d7870694464f73a209. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ZB88P2200138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600d40e32836eee5d93c2536b42e81fb02c8c6a674afeff1a02a015d00e65c16. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ZB88P2200141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93ed804b9200af447649d58e4be4ad8c03597672de8a59557a166c3663daaf8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ZB88P2200145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1a4511fbc05cdf38268e7b856473d88e519783e54a1de4c365440ef4ab230d. 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/ZA56E2420285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14861608e64527caaf22769c69e515ed61c173bc97e42bf76c010f2d7dee105. 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/ZA56E2420286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd467f4db4f774b640c6459f92f33414a7fc3ecdeb10603c3d7b112909160a3. 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/ZA56E2420287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271c9164b3a3e02d0a29e4ae81c6756afbc7222b139bfdae2e9a4d4911c29756. 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/ZA56E2420288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b7ca6780867574d4de0ad94904b761c4afd77330742dbcb4c1915478ac3957. 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/ZA56E2420289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d1de9b4013b3aeda300de72709187f617c30c56d71c761512a08a00eba7d4e. 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/ZA56E2420290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a47c4a5a27b22a3acf3265dacc2063c98423f8264e781f6b2c8ce03127d2d18. 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/ZAC012400169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e23708c100645ba00c7c1c99e02d098cf39edc3b65ad6038b412aa29c2cc3b. 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/GBQGW2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597b27d2b95cfd1a7508c8780f24397f639349a695e18a58c27868af7ac5fa1b. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ZAC012201542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045d9d814001ef3d7facd4fd3bb32abc17ee0943f86e2af7b4c2587c172f7c5f. 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/ZA56E2102228.
Impilo (feat. Kabza De Small, Mhaw Keys, Babalwa M, Kopzz & M Keyz) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64adf4fce034b70ad51a757af701ef20eb98029c85632c573abd7e8a0cab854f. 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/ZAC012000219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1512760f5399fb226e3d069006835884dccdd35d68be1353653df837768e93. 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/ZAC012000223.
Jazzeneo (feat. Xolani Guitar & Mhaw Keys)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815b34648a28b4aeb4760c4f14d343a51589e8e5c26c0a209aea61d8c30f21af. 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/ZAC012000224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cc8ae590cbdc54c3e6c1bc72d2b75bdc43ee60b21485c728abf8059a04590d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ZB88P2100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fef3b1181fab92107189a2351f4c735af22da2f5fd7108043f5c5abd82e85d5. 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/ZB88P2100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fde1875d63d0e86e7fe5b585d57e300c8196f1ce065a8dc76bae697872fa0c. 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/ZAC011600859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2993eee58e54e4421a65f541dbcf43236399a63d61e3ba93f1fdbfdfe012d04. 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/ZAC012301242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2993eee58e54e4421a65f541dbcf43236399a63d61e3ba93f1fdbfdfe012d04. 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/ZAC012301242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe655b06ec47ede8d07f72fad5d876c4a77c508e3e543fdc0f0f6dfbd97df0343. 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/ZAC012400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9072bbcb1a2727c98a3e081c0363606600a40f1b6069f8727c145ce827c0f6f. 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/ZAC012400038.
Eningi (feat. Njelic, Simmy & Mhaw Keys)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433d029ab1fa6528a3d5d19acde5d1dce4ebcf2454f2234b83842385c92cab9a. 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/ZB88P2200187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2e9fc7ae1b45ae89d082bae75c1b895184fb10e85a4208081af895a8ede56b. 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/ZB88P2200193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12255b0fc026a4129d906618a7b4ce0b78617243e393730baac1cce3ebf0d439. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ZB88P2100104.
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
Time Together (feat. Mhaw Keys, Zwayetoven)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb349d94a05ce1e981211f3764141c822744719c2879ffd178f4af3dea3e439c9. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ZA56E2304072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08acf1f8cbef92678e151130ec2f9c3d7f10015473ef725f7d8869c22d5f88d. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/ZB88P2200178.