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 0x232278626253eabcae0f5849c6a06b85025bd318d086e406e94398954593b859. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f79bf32-d282-4fe5-8979-29f138e235f8.json and https://artists.proofprofile.net/proofs/artist/1f79bf32-d282-4fe5-8979-29f138e235f8.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 0x77e7e144fe78fdc5da53ac766b0c0e1a481727d469d471b6969b321eaea3d488. 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/ZAA011500706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6cf028377dfe540968fffdca8dba9fd676e5a88ff06245a6985aca3f2ff135. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ZAA011600088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0ee195622120155607f9c57082beafba354773e57dadc0a1741dd4c1bce33b. 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/ZAC580800352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedb404c789e86360c2d4812301b7dd7f4291b161b758a3fa20deae22c95af03. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ZAC580800353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6735f873fc6c29c43306398f323a0cdc86fde1bf03db0dc99889e5ded69b4e. 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/ZAC580800361.
Jesus You Alone (Are Worthy of Our Praise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cbecb0591f3d0b9a5ca6bdf197c45b321516accb5accd0f839ef67bf5397d7. 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/TCAIG2499721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c2e2a208e4c8ff012ea16753f2cf2f7d29f75a2bc63ec44e287d71e4fd7b00. 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/TCAHX2421122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aea5736accda491d62820fe6a6e453b8e258ee755da9b2ea16886181acb7127. 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/ZAA011500001.
Japie Apie Soek Sy Mamma (feat. Leandri Klopper & Sean Butler) - Storie1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda320009cdb2dcd0c85a2a6fe9ac5200d7aa45f2b9437009a21446da4aab1bf3. 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/ZAA011500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb697074613e2e87bbc9253c730b94037b157803397c5400ea9ff2c74e6ecd967. 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/ZAA011500003.
Tokka Die Stoute Kabouter (feat. Leandri Klopper & Sean Butler) - Storie 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8323b7e4df9f214e70e967462249e95832331bf08044272687877193567b9f9e. 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/ZAA011500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89bcdbf4b92e1f294c273d6dfb714e225be469f3f661ddad7652effe00eb870. 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/ZAA011500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80984d14cd6c862597d84362ffea942f6b5c713d5cb9705fd75c44b75eb25e51. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/ZAA011500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0025dc5ddbf8b975401875fcfb0020645da22e31a0a44e843154073329d295a1. 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/ZAA011500007.
Die Wurmpie Wat Nie Vroeg Wou Opstaan Nie (feat. Leandri Klopper & Sean Butler) - Storie 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a878578be7286f62e0a9be97b32012d10bc8308dd592c93e0da42df1fa9149. 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/ZAA011500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c983a60167a02661534a58a15dc1eaab4e2a37bb9c538c8b3cc922932de925. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZAA011500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd0623aab60c6aba327f2330c8910ddaec81da455d93ae75a01ebb9813351bb. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ZAA011500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac96b3aa95bc13ae0f353c953f6b05560c52be30cbbfcb9d864b65d71abb3e1. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/ZAA011500727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f427b2526d83019abb7357958c83705cab613dc9b0e618e24dda83f364a757. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ZAA011500728.
Storie 2: Diep, Diep In 'n Donker Bos - deel 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b382c513d37ccf2e090617d8fa37b491f2c5492a837f0afa9e5b94d32dc2915. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/ZAA011500729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bf40ed37ff44f640442e09157e697ef635de934b602fa62feef90186dcb20f. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ZAA011500740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74d9bc7ff894d313c2929e3c4ae81d0b5ad7d389c04cf31e383b6cafb1cc9f1. 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/ZAA011700365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa394196e0d2c56d9bff6c6fa62a822e4ac669cc52f2156f8626c1922b860e70. 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/ZAA011700366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ad2aac7e316e7340e7f16959ba5787288ab982bd9b59bce7302ebd3e3119ac. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ZAA011700367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3045072143a061554ceabb1ad5b16e9e07d3ce81fa2a590bed68a9d0552af883. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ZAA011700368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34fffe069eccd78481f2c661d973535636cfc1e451fe5fa930663c0e760562e. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ZAA011700369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa566c9e377514d545f51e87092dd7538a3f1fa8de9cb1f2ca6fc758e9ce697cd. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ZAA011700370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a76254e027d1cf26b014279b83a22e8ef9c95d4d15e24aa3fa855b224158e17. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ZAA011700371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5369116b1105c942b446a3fc22260854b8f84bc280c2e77125a09495ccc05f0f. 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/ZAA011700372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73945e5143e53fcd49f5d38311e1a6ede552d74f41299124361c826dd6cf835. 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/ZAA011700373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ea5d7a09732cf365b59b6a26363392493634d56bd4ecbce9a6407831dfa1c1. 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/ZAA011700374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee52e25fa04312285304527abeab2e0b05a84d037b24a829c2a3a693f86464a1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ZAA011700375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0859a817aeb1d13ed988b3e302a9dac8ad75c060a33b362d66b9c660995ba0d. 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/ZAA011700376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b775c399d7e0b679c3547adb5a73f7cc8d4dd846cac1845af51222f05a3b4a. 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/ZAA011700377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94fa54df47f7a3dff416eac64715893498bed2b998a158a2b6824bb7d0c4ce2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ZAA011700378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7719d09a5a4ae9d2637a77423fe9204e4066d2c15520cc45396e8a1f0aa8b2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ZAE530900277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe044a535e12313308232e4671af69e968829362d24d0b451a475fe659ccb8a01. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/ZAV261200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b340b3d5f69d8d99a68a6d9559bfff1ccd9f35190c6b9c832f31171cfbeeaf. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/ZAA011400435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075c926465f6403482ce368779bf8e121a12be1bfdb04ef8d77f350fe261480d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ZAA010900023.
Untrennbar nah (Deutsche Version von With All My Heart)