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 0xa0a78ed942ab8d81a18bc63f97e547c7adb77e52f037d41996db9f3222b27df8. 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/71f23307-2a21-45e1-abd5-1417a91d4d95.json and https://artists.proofprofile.net/proofs/artist/71f23307-2a21-45e1-abd5-1417a91d4d95.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 0x20b94a2bc04cf6d976f8c8e83ef3a409fe3adca346ac0fae139a01ed36f3a81c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GXBNP2443299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc848f558af7c39b385e0e2769f4bdb0cb6819c42865d326598b73d00c1327054. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:31:36Z), 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/GXBNP2443315.
Cargo! The Quest For Gravity Original Game Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42cee3fea2e9b78a032d31e6e17309336d5b367215f542853b63b6724cb462a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:58:30Z), 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/GXBNP2444045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e4a49d3655dd98565e3661463da2372d71eb8d88a6a60754f2f4a3329a8a72. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/GXBNP2444046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab8212ac05f74c3a082e7fb524b7d9251d7554f9b5102dc83e2ada14bdd7a58. 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/GXBNP2444047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a3204360423d7139df2c255ba7b480aa61e7c85a7eb83d2c6aa0b0fbd32e52. 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/GXBNP2444048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9fb8936eb045a98d3a6e4629571251a70656bfba8379061deb1788342150b2. 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/GXBNP2444049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4d77de40ff2dfb26d8fa65df47aa59aca9f3d1ff16023d695c7c9c655dc459. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/GXBNP2444050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc6b02db6dfd9b7e9c534d3448fcf8378499a6da351d829cc2b46f7c5d58e75. 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/GXBNP2444051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e5490348fa5abbb7b7bbff6f6a469e37891083115223df65b01ad8bc8a2095. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T03:23:20Z), 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/GXBNP2444053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7884e3b9cfe9a3cccce33e959d480a0a9f26c9accea879433e3440f016ec6d. 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/GXBNP2444054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf13f49c2f78c4938ecbfe282010b7ae60e082874a3544235b60491a9f0cbaa0. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:51:45Z), 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/GXBNP2444055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695be02bf8c93b9a44a6a221430f01c66248016a38ee9ffef0009213f7679662. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/GXBNP2444057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cfdb3c2d374893957da239d8d7e3d937fdadb02e4b5205d0ea047e82fd5995. 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/GXBNP2444058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a75ef83dc66b471276547deb8b76fffb3524996da4a003c709735e32714ca97. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:31:16Z), 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/GXBNP2444059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3287fc49a1acf133c497e79ffbf09fb6fc2d125a54b8b6ec7085a39d1e48f78a. 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/GXBNP2444060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90c1417d1f0901ef0e3129d20752a8c1a145728ec731816d9b56814c4f248db. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GXBNP2444061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f9a379693b51510536b2f2996a2412a57c8371702be2f0db31eb1b4a6e6114. 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/GXBNP2444062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9e6348a2d6e617c4a5c896ab1e1ffbde78e5ce5d9968fd85f33a493d1190e8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GXBNP2444065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66c1dc512d66bf54508d7826b8808d9fdbed312c1bd4cb81df2282b0a9a9782. 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/GXBNP2444067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3db82ed38369865b1d8101bb4a2ca0b8c6e7522751586ca4abe29e6a4bdaf2b. 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/GXBNP2444073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96fe690e38d5513fe28bd80f7679dce1f79a8ee476744f7131ce25033ce368f. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/GXBNP2444075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec5b0d59ae522cdf9f73163b3029b91c17f7756ee1631dd79512197928ddc3c. 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/GXBNP2444076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf999562d7300d7db79e4168d9d940550dd5e6d692c340bf5a1e9539c5f71dd4d. 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/GXBNP2444079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004f35aa44fc437916e208052e54a4fc9c04cc8e04e03909f79f552a338aa9ab. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/GXBNP2444084.