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 0x5c38c134cc9fdeab37a1253b859f52a9b68f849abe1fcdf737bf8868b23bf8a2. 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/71a5edf0-3e61-4ec1-bd2c-3fd856e899ab.json and https://artists.proofprofile.net/proofs/artist/71a5edf0-3e61-4ec1-bd2c-3fd856e899ab.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 0xcfc8f41373ec788e8a887c2ac854c21edb9baad8bd3c1950531c35426251e117. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZHN31938756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f892c9a6c8ef26ed648ade661af3b9557bdfb8f05f34078f57d7b3aad3626ec. 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/QZHN62078832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76733f65c4163156c232462859289b9ead73efca0de1eee8007467cfec1e1c90. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZK6Q2095300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca7adbfaccb16268963e47e19c45031f9534fb02a947e1328dc3cd2869a7510. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:56:06Z), 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/QZNWS2042612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c9d35c41bfe4bb6eaf1f640c8bee6ffbfb0b29a716932a11ec0d0fe6177268. 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/QZFZ72137752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53eaa918f9f7f982cbea5362e12625b6af8aec32091fe905b74cf58a3c73943c. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:47:09Z), 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/QZK6N2189154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac93f16d59360a8042dea16c1622f1d0eb4ff93f89183c17e256e943caa9de95. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:30:04Z), 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/QZK6N2189156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e0192b7336c69518a64631cb3ff2f1d5d881b4fbb7bc5d5b5b095af014f0fa. 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/QZK6N2189158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a858acadc8df7fffec807b54f305648edd742dceda1c2bfbc15b64df2d5572. 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/QZFYY2266688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a62cc63b3477c2dcba740b23d5fb95dcc7a5dc4d10d11df79c86f7891d8221. 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/QZMEQ2250304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c618de64798850704733aae5aafa6ee293216c9e5fd4f993c516f34c8c7b05d. 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/QZTBB2228498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966c018c0a9bd2fee4997bff722c8f59b6c5170f89aa6932749aba1e51d7ca80. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZVEM2322977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3373e08997c0440209a2e0ae370fc88d417ed4c174579af29cc05f604be08ada. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GBKQU2350088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931526af8c5832e54f50cfca407d438938979195c95dd365a0c436b88c7e4702. 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/QZVEM2357048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf279c89803796e3a37758b348757d3983a1d23ede32b4f6c41d4ed6be2c2a7. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:16:56Z), 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/GBKQU2387902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2819703d56971493c322fbe074b77236c758e13413931dbfddeb65da2279e45. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:21:49Z), 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/CA5KR2387952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4138b33eb8db6d3e2f5d1b71d756db55f30924ef96cf4cb2700d55143ca653. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CA5KR2387957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7d0aeca25ef84ac8f61a96ed1ef49ff211f1113f3c9165e46565eee33b4082. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZVEM2374489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab5457b14d41ee390ab353c84f3413a7f6d87bc9d1773c769ae78ef644823bb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CA5KR2416657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de5a9c680c480c5e5897f62b10f82ad7e87bdef38c7d464240123db9ef6af82. 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/CA5KR2427682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3755e07339c25a7e38aaa8a65303edfe53cada16692e8608d60cea9c7cf18ded. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZVEM2394262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77488d4be019f78cd44877c0ca2cf12f05680fe83802d2d4fa4520153386b3b7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CA5KR2429277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe638866f247b1b4947a42b060ff62f411eb01182825accec8475d498e3569aa1. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZPEW2413956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06172236dd9509b2de8e17e8208cb9c1dc2140e9fbf2d4574a7a2508b794c95a. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/CA5KR2442541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4d208d47dcc0a8126ea9077e0cb35de2ab61e3a54984cf59f1644e0ff89ea6. 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/CA5KR2439355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2c3c0493667186009d5f81864a0466e57992694c78cd1d3b21b865d7d5de03. 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/CA5KR2444300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4842381a314b9d2f28aba08cce79084eeef5267a78e8573a07f7f8ab5ddc45. 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/QZPEW2445363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5af3d48ec21dc2e2829f56a6c585c6fa4b57fa7eb7c2624ae4c351f0506bb1. 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/CA5KR2452369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60889074545b8575dd337a68975fd5d940700fe11a3771cb43843afa1ba95d8d. 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/CA5KR2452292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cca899a9d1dec62c3928d5ccac4ad0fd931ea60e4074dd664724b567d4656e0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CA5KR2452295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbd43b639367142687cd185635743ed15b66c473947474feb7ad45b827607d2. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CA5KR2458749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d875ff1275d08fda33b68f40a2031a6759b057f6192e78a7ff5508031a51b59. 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/QZPEW2498006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cf3d671d95a5cda555525dbb37bbbb1aefe6eeb369190e25188b59b1a38f4a. 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/CA5KR2470156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd22c011114333db71a8d3c1aae77df31bb515e28df560b807933139c040d69. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTGW2402992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc75ff3360af0f7304c0c4ed5eebdfc9fdd18be47199c6dc59756df9ed0a8f72. 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/QZTGW2403270.
my version of you is still running in my head
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e98d0f7a62c5e501ba20571e499c898477ce10762fb5f17abfb987c2e52109. 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/QT2VB2509679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2a617b505f0e0c7451e40ab4bd9f3cd27f2d79cee19afb99bc1aaf621ef905. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTGW2404241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73218dfda45ae353e55a2382457ea0b6e502a7d18c9d5c163d492e6143b873f3. 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/QZTGW2404242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5c7e29760ebd84a9d70e9ba80284b96aca83fd7779aa75755dd19fdf8fe967. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:00:42Z), 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/QZTGW2405920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003c879652bd410b4c0d82a3c6ba9060eb95e3e6cbb2a09584091a6c10408217. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTGW2406558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6faef477292d23592272ee61fc1b95f3b047c0ffa1da310e394ed1895c126f. 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/QZTGW2406894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b4774c09c33995b3c055f03fa597ce09dec0144498bf9a47c65d6f897d1ae3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/PLX632501001.