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 0xe6186155e5890fcf2157eb55144999f2f190d08b12e8f1499cfad4489f85549d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be6101ab-dc60-48a0-93a2-01dba26059a7.json and https://artists.proofprofile.net/proofs/artist/be6101ab-dc60-48a0-93a2-01dba26059a7.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 0x82efffbc9344ce1a276661c9906a45dd3024bab80842b204b61fdab6d2a542c1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:17:33Z), 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/US3X50406204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2ec7626f6b533c405ed78efdb9895a24856e3b70262a9ae4efac0f2ad0068c. 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/US3X50406206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb729be15690e0e8848b49a5f0d3d117afdffef36f78bbbb30ac80fc62ccc3de. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/US3X50406207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffadc35909390061fdb375a095a5258baab119e1b8fef1934e2a759af05e250d. 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/US3X50406208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c077fd9646bf875a583e2de12b8204c861c01c576cf8b44768d30291e162cf. 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/US3X50406209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4c106af359ac2ad57e2fda99c8e19b967cbb8649383c11cc362129f3b57bc9. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/US3X50406210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2f6b038efa29ad6679822d8cab03c2c2a8d2a97265ec07bdb8a01a1a4b5ee0. 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/US3X50406211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe5d7397bfac563a0cf9ec16eb7888bd3856dccfc30edbaa31be477cd9503ec. 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/TCAEP2097526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d4eb495dfb3be410c1ecefb68148bfdf85888a3344bb6813600c1d1b13af23. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/TCAEP2097528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9d12a5ea3bb712d1d0f946e3cef4ca8c36ed340e18890031eefc0a3931b553. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/TCAEP2097585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03011eae15afc667fdea5100e6325eef494def7d3871b844bf2c52e19952c47. 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/TCAEP2097588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4fb5f7a0b0eca07adefca0f4fb8b1f6858b3bc5fa7517d4e46108780ae073b. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:50:54Z), 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/TCAEP2097589.
There's a Black Hole in the Shadow of the Pru
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8facb91ad0eaeae5e05057ff000cb01a728d3eb48d29a40ab7fabafba3c796f1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAEP2097591.
I've Shared Your Lips so Now They Sicken Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3f2b7f162eaef7a98eebb349b87461e0d7d4133cfd50f724aa3ed76bbf1748. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/TCAEP2097595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12ba32b97ada6a85a9e3bc391adef5f7555bcc1ddfdc3c2bb0b2cb0333292a0. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/TCAEP2097598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15fefa7bffdd015663cc6ee3457c7ca99979946616fdbde529f8e5c1391e5fd. 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/TCAEP2097601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f63404a0c724eca45987fefc390d2b9d35b56d799e24ed229329cba7b28612. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US3X50408301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78459b8a01b1f6ba23d2b765c531897c67682577686d8fcd21165354bdefc71a. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:14:35Z), 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/US3X50408303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f6e004233493a31dbba0cbc54a58c21daa30ad59bea79e726509a3b87a9f46. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:23:43Z), 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/US3X50408304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059b0e524701f0cfee8a6dd4f0f1e72c9891cc40fae674f3182a6f1b482d5ecc. 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/US3X50408305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f12c265cf29118f0f7e588631251d7eb4e5a5d7f48feb0970bacd5babf874b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/US3X50408306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4e298f7ddda708b11923d826b99479938ad965760ac37ab054001803439f59. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:53:46Z), 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/US3X50408307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62ac23910e7fba4a608bef9227c7b3300aeddfb90bab98a7673e53d4ba45cfe. 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/US3X50408308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070bc8d160fdede81fdf63bf8f0f5281ef15648a75302d7867381f8231906d87. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/US3X50408309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4de5eccbb8943b8b24df27aca46a72bc65cb4b4ecfad94e87b0cf835413a31. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:55:16Z), 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/US3X50408310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ace16af14b3856a230f3437d70c19abae853fc2a14694a2287f9359e6ae9c8a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US3X50408312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22851fa3efcae0283fb4c749058ef5bb9059ee8828f7de5fc0d0d9c544aa8611. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:44:14Z), 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/QMRSZ1703010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c75b1ac23100a540bb219ef3b6cb84aa02a148bd788cf641b9f10ec2bd84f4. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:28:12Z), 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/QMRSZ1703011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f64c9583d1b537895ac30e49d409890dc4881041c91edbc5efd112f1e0ed9e9. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QMRSZ1703014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01490adb0beb8c59a150556046eab4562394e542d8131271bf1daa70b47daf78. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMRSZ1703012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f916e003b6d40b04c7d5769b0ce0fb1d6d18efd6bf11bd9f7a6739259e0d44. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:49:17Z), 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/TCAEN1952405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ebe85a44f7cde4afe572184cf362849ed7b34f10a6f0ca6af0853efa9c262d. 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/TCAGT2362828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3947c8c794f15e0256036ff8f6e4512ebd6c7a225b37b5dac1d7f466eb879f3d. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:28:04Z), 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/TCAHB2373042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364aae6c8aa31a77561eb031da400ddc7c32da072fab5cef9fb95cc079a922e9. 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/US28V0610012.