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 0xf4cc19b8975c47d018a7f677143230e00334311896e3ffff036e3dc213f1a635. 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/0f31c61e-4ac1-4a1d-9115-fd8909e86fec.json and https://artists.proofprofile.net/proofs/artist/0f31c61e-4ac1-4a1d-9115-fd8909e86fec.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 0xc9d838017df8bdbdd0e57e33b79d14974130716f6de516ce4c0f86d559f8ce42. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KRA592102617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19638412a28d180fdc34bcc2f942bb0eb3982bf472385771f50b228bb35a6629. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/KRA592201223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679cb09c980c2e2dadfd8e2c9336365ed22b91542e1df1411d6be0e88d6de81e. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/KRA592300688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5299957586e68d5a31f5e18080dbcb71640b4aa61e9add6dee2c6569e2f663d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZDA62417724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd65dbb062607f8dd4dbc4ad02bebab0dbffd5b115ad185e4c4b41038e2764b8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZFYX2429731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e256e267567138c802974deb65ed3ab69000fac241983325302e7b00071a50. 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/QZFYX2429732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b6619bb7e01a52d1bc7d49352458016edcbbd06cafbbc4fcc49aed4e199ec9. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/KRA592201976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0c2838697ab3d0e0348da75b4b60a279d714774384cf9e7f7f3591ef40e7f9. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/KRA592400391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1d0291da7cdb171e2f9b4e028f1a7beb3945f37c6f5eb84e1aa26e3a501d44. 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/KRA592400392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e720b1a6fa35a8d537d002ad98c0486f2155898aeddd5f6a186375ad1329786. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/KRA592400393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75eb140af6e20ff3eb05cfdd0dbf782f52ea050776061e4b5d931876f91b58b5. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/KRA592400394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098fdaa80b3e21d5960185cfc37eb7383029f67ebbadd350e1a48ec760c0868c. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/KRA592400396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edfb1d98a8aab19d8adbc1bb1987a2b173e9d366d56e000bb8caf807041a820. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/KRA592301665.
LEAVE your country, your people and your father's household
Leave your country, your people and your father's household
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d5bf36754d7368176f71663afcf3a27fcbb823a1d604489978c47c029af4ba. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/KRA592401156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b1b71fca2fb4eebfce38632f7078a5b64332aec640091ce03da9909d687256. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/KRA592401157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d8ce252b93e55b022bb694231456c05c78cefd882e0137c4c5d405643eea98. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/KRA592401433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8d5120fdab95d3d2e65793de6bfb8af03e54a07b08e2143246e68cc085e228. 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/KRA592401434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef97d10b2d02750dba8b5b8955528c5516f5be5319db1fd53706880155e4d66. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/KRA592401435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d606d2ccc99b1918b97371665b4b5fa34e93deff32bdbd052532a8253eaa8a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/KRA592401436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe209e2af8b8b72a65462b3dc1a9ffb44018f66387ce35ebcb59a51841a331795. 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/KRA592401437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ede2262128f967f469d4c6a52a82877768882bc6b13ea8acd030fa60be848b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/KRA592403212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0304ec49bb1d1ab2767ce139863284d8876c44de01b852871bfd14a5caa9d5. 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/KRA592403213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098c267fd9e98f3f9b76ff8bce93b89a5cf5f1cdde2b7cd80c401ccedf2028ab. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/KRA592403214.
He was no more, Because GOD took him away
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185ed6c37efefd2a535c20a1fec9cc90f76b2360a64de5b51b708ef143ab7ef8. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/KRA592403215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4172bc6c203cbf0dd0ecf0c17cbb38c68d688bc00b1afd56b6e178afeb4a1aa4. 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/KRA592404253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbd824ffac4479519455289615d7a69f20162241b6ffdee309f1940e48de280. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/KRA592501454.
In the morning, O LORD, you hear my voice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8085d94ca14d1f8ac5caa7970aaca3e84b7b18ae5652f7e66be2d188978f901. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/KRA592501455.
Better is one day in your courts than a thousand elsewhere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde80406cfe2d057a29b659b6353bc3439141bd03343609b783559aa8a6e44166. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/KRA592501456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca40e72218eb3ba01b48e0a9e2ed7cee51038824f596f16e24e80378211a66bc. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/KRA592501459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75be31061842fa7e786147225496093693b38877ed888a60a61e1ef318e6fca. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QT3F62515532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2d42729b8bcf057d853ae570c7c7b16b3bec149527f9e39bdb897eae7ff417. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QT3F62515533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11077c00431809f2ddc1632c910264dc311e7253032fb67481dfde53a687723. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QT3F62515534.