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 0x45e4c5019fbc04b6677de8f67f77c1e1de487ff8ed5da3f678ecf4c62dc20500. 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/7be0fcda-a578-4b5d-9ac2-1f0035c28174.json and https://artists.proofprofile.net/proofs/artist/7be0fcda-a578-4b5d-9ac2-1f0035c28174.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 0xcaaa4930bd517128ae74d491281e857cf9e2915aa423b8857e05cb2cbe89daf4. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZ9JZ1716191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb53bb8fdefb8ab8ea7b978bf62d93560ad02bf0db53e47ffb0533f6b7e8f2e. 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/QZ9JZ1716069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b5a1fbaa2398054fa94a0a341d713a06aeb10007dfb98b2df92e1ea637e315. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZ9JZ1716071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa4ce731b30faf2e464bcbba9f8794a743e343e046e1dbd667a573438df8db3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ9JZ1716170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2491eee4e223fc5575031c9e62288adc9767718b27167c38fad7d296d530cf. 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/QZ9JZ1716172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6979f649eebda1d33c7e3a0399010409f94da6e42b470106ffb59a17a18434e3. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZDA51856851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5abbc9f631fc83b803d055a724057752afe9b3dcdbbbb24a7e72a7e7fe4ac65. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZDA51856853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e90bf3ec97df4c19031036774d11fe4454be173e677c93dab3124db52aa4ec. 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/QZDA51857426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2199f958ad5360f6e000c864440e6b08af303263728eaa67d8f13a2debfbe7f3. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/QZDA81901044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20afd1222162a3d067a5741d970916c238dd1bee9a9f649c480621def128986. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZDA81901045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cc48a88b274500969d39b0f1619b03ae02709bb65af14f9c6fe24bb366466c. 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/QZDA81901048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e75d1c24281d62b39ffb2c23c993d19d0c4524843f887d3030b15f8c7e755e. 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/QZFZ21903046.
NYC Sunrise (Sellorekt L.A. Dreams Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9266f241aabc32cd36acc5d9767afcd90a912aa2e1790d55d1d2e620ff2a06cf. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZFZ32089556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9df761bf0164138c7d52c0e9f8778cd9b3385ad40d20b52e6764cb36c49543. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZMEM2032205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe943e512b5a12c83ad740fb85b08d94f6059b43a850bafaff629a4495a6225. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZMEM2032206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab027e37dde6fc209dde9f491d5cd38d6bc0e86d6ace0af7b464ead1be2cfe46. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZMEM2032207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47a5ed4489d1ecea486ecde6e5cab417d7b52471fc0ee85b7e314622e1f6a2c. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/QZHNA2126011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffe8e75cecc59e36bae01bd3f530a137e3e99356c6344a6ac813172a63b28f0. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZHNA2126012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7707df39acada18038ef47eea71a854c6a68c72786703f823ca8c5858dad82a7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZMEM2101374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9978f315fdd29df839d163cbac97c254605a0e3f3790c4fe19a49f5999ed2016. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZK6Q2269321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9203564a5664e9ac776d90ebf5737cb7c6f638d40e2992d5b79109688a80bea. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZK6Q2269324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1903fe8b3884e4d7cc0cab3e8c5ea5ee35183a19604c7a7f8901338ac9e87d4d. 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/QZK6Q2269328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66ba92aabad8c268003a4864cd2a49838d6b932324d39501205aa875851e46b. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZK6Q2269330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4e0d060ffe1bf2cf2b32a3bbd62db966a38b5bd243e734a6a0c9e644782e4c. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZK6Q2269329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ade58f439c06add8723a719d4bb262acedce4a01eafaf4a853efecf81eebf7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAHD2391036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9efcb2440420711ca9ecd4dfaac1b82f1fc7a2ae724d81614d50ed2b36958a. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TCAHD2391097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0534b71645a7405c081d8113e36c64fafab2e36b7435a1930a1bcc3e79fe905a. 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/TCAHD2391111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee17efcec1e3814b3f1ea8697fbf4ce03520c71ce8754ae14d6770a2cedf652. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZRP52306020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e180d15d10a663e6b0eca57180da2aadb2a65cc8812330f86a02c5e028e9c06. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/TCAID2415051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c760dec3b68f2fe5f140d51db8c53c9f8c801b1e009db339afcb9e63c3a0ff. 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/TCAID2415098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a7d3bdeed1ba0b435865e7bb4ea4cf3e502506a4b58a58b380a9573b2dc90f. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/TCAID2415114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e19519510dde2e3479b94eb9f001b0758b8c9ed2619f8f988fe173c9f1b60bf. 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/TCAID2415151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6a84b849a16d33ac36b180d1bed8183c45aae5dfea674c5c9d993b1d32c9ce. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCAID2415177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffd1b20c691d1f70d2420365076b5c0e7d02dda883d0715fcf25355dff82bd8. 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/TCAIE2415187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd730fb11cbf8c139769ce45fa6b869a5047b4fdea3dcb037da99eff3f50cf91f. 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/TCAID2415237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae2686b529cec41f145821a0ac19b116d37edf53a820bfe7f083b6d46b14bf2. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZK6P2542878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef45b2d102404296ea6eecd886518ebb0ad8d0d62c2486c01602fa806832587. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/FR2X41942326.
Songs They Forgot to Write in the 80S: Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd91384745eea88d33b1cf4368b2a798d656f1aef680f55a469f941a6110527a. 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/US7VG2578068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54338f9fd959a21552dc06ba098fc97189f44316e31670ed387e11b1b6a0cead. 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/GBRKQ2244229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54338f9fd959a21552dc06ba098fc97189f44316e31670ed387e11b1b6a0cead. 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/GBRKQ2244229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ecc2c9eb10e082153849d6b7f6b8a542aa21ff6bbf90572a91f75ca3895782. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZNJV2477869.