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 0x9b9b2c44d63f7010488689faca5c3c7649d596ced84736cd80ae5c8c14b7f65e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2bcb806-1695-498d-8c30-87ae99fa6a50.json and https://artists.proofprofile.net/proofs/artist/f2bcb806-1695-498d-8c30-87ae99fa6a50.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 0x7d45e092e06119347448a09afc0610768543434a9aba69a58be186f510e2b6a3. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:53:28Z), 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/QZEKE1878004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00af3efce3cf6cacce76af1e09c181e8404bcfc2dfe590b0bec0ca2f63195bf4. 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/QZEKE1878011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4b672a386f4373240a95a6af7839126e7878dc0a7d06a35cdaf595a539cb3f. 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/QZEKE1933070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee39afeb1062f32207cba7eab445590edd26aeae1e667217b56b5f9ddf44839. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZNCB2182624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed2b58d5cd1d3b7ce7ec8e0cc4e482b95967b0dcb601b77c89bb7e397899829. 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/QZNCB2182795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb6bdf30ee5e14535ae1d71e7d7b89d93e890045d1de86792079103293caed2. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:49:39Z), 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/QZNCB2185031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1fbb5e1ef8ce5fc6e22fe97e2d894c049d2560fb42e65ab1846265196e633e. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZNCB2185152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140ebdcc2ad5963265e27426bd3938906d7bd20bfea3a70d37dc0913e2c8e017. 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/QZNCB2185336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417d9309ac060386e2ab602d094552aefeb1cda07da5e1d642f557d598cbca5f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZNCB2188873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0b7eebbc123cc13e54e89f5cb2abd2c010937693012252a985499d68bc3462. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZNCB2148825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0b7eebbc123cc13e54e89f5cb2abd2c010937693012252a985499d68bc3462. 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/QZNCB2148825.
Use this sounds (Beatbox with Meme) Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7847c3ba0785dacac9d43c1851d4b0c1e2f31a1ebad8cb15138aa2c0b59f49e0. 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/QZNCB2149681.
Use this sounds (Soundtrack made from memes) Vol. 2
Use this sounds (Soundtrack made from memes) Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0491cb6d89a72083a6f47d0f6d440cbe1679ccb428dde45f97b46d9d63acd0. 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/QGNCB2307390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55739ada65d027e2a7cc491c43bdea024eae907008e5e90ad257b304b85d0217. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:54:51Z), 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/KSB012301394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf58ab9c63e800a67eb1c8c369807e4fe4ead63320e7c42f6fc40699201c0a5. 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/KSB012301395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331087dbc775d2fce804ebcfa6f5735823a649ff26a74e80c53067f379728dee. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:34:06Z), 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/KSB012301396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379cf18466bae2822137c14b6d60b96a892eaeeb04b6e1e18d179931e2159dc9. 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/KSB012301397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd403f0569316f8c2d26962e976b19725d8197b138c7a497081850d1e91a055cb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/KSB012301399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e6e262b72b637c5d5597e31d46ba584e438448be5bc497541d2307425d65b6. 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/KSB012301400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9ce5db5b4418e50fd75a31ba96f4898fe74645120dc276ada075fc444537a6. 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/KSB012326018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140f1b0166234fbf48410a71fe4ba84e28456213a74c36ea1f70a29637763f14. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KSB012326346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed90f957a41eb97d52586296f4457e0f910b864b9fc0a5a78743450bd934db9. 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/KSB012326347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd546f32dc4367dbb417bde8fec0a0b2f55574d7ef3a5ff8d7973a00c59606163. 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/KSB012326348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d585603b009949666aa7e4f6487ad189b72d8db5fdafa617e1dac961b704afb. 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/KSB012326349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ec4380ebd717486928231543869d4a0d2e2b1ad89c6e187c7246e9de33ca2c. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/KRMIM2564190.