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 0xdfe1cced9deb38e60d670ccda1901e63c4208d4499a1aad47ec6dd2fbd4951a1. 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/fc89b2d0-b379-4edc-9179-392dc787ae15.json and https://artists.proofprofile.net/proofs/artist/fc89b2d0-b379-4edc-9179-392dc787ae15.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 0x2db26a224535b16362d44d4688d4cef4b05527fe795f781d76d1ada87a13c714. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZC5P1800115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbb01a27005341db36acc46c4d4a09b1fc56dfcafbe78f840a0f828e00ded43. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZC5P1800116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b16f9b1128116c986376cc73dfa467ca369499c2a3c46fda67f71167010f92. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T18:04:32Z), 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/QZC5P1800118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cecd9494d0a1c13349812bfeb8a042ee31b23fdf1fb8e78981612bad6be960. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZC5P1800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cd5c583a0350159e6f055127cce682278b7a2c2d2c183714d2bb5d030b11d3. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZC5P1800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8884b58f71b25ced956356a0dbbe40ba2e7ecdaf197f056bb3b8df9e026c38. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:20:00Z), 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/QZC5P1800120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde46139f71187e96fbba01677ba7176b915cb81d429d5a9d377a2adede120a0e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZC5P1800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20763c3d34772497983daa07c2de36bd275f73428715e05bcd7bb0f2c8d6ee36. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:31:26Z), 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/QZC5P1800122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4a7dd1c50e38ea6daa9a54013cc1c12a2013bf1f277140fbe50f8ea796acbf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZC5P1800124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ddfac971d84495b76e41676955676c3f804bb3c19e77a6ab0810f78c8bc127. 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/QZC5P1800125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce03e7e4be6df5e3d592bad7e409dc583cd320bb9546643ed8400c180f2b919. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZC5P1800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b51d83f58ce01cbe2e71512b421c44393e2aa2f253d2493a2fb7397a4b4c28. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM2PV1760718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f83f72ddf8f995fd02a0a25be1a50cbb112712b9a5ca49704da8ff1d700a4c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM2PV1760719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde060de1258a0ac61d86ac10e6b5505fbeca717cc63b4e970c22e5338f9d36ef. 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/QM2PV1760720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b34556506279d24c612ce26f79d60af0fe6b99909f6992dd6ec0276b230552. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM2PV1760721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24ca9ee12d7b0f6430b3c7b35fee6c3d1bd908630a61300d504ddb345c49d9d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM2PV1760722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb35282f878f631085c83c84be05fc68de46e0730a7a09fe21784c2b9926ca60. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM2PV1760723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c71dc21213d86e3c384c97440967090913d235f9ee4a83f8d586aa14d059ec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM2PV1760724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1d2e1669eab6480e59c59ca4c0353621793505716ccbbadb0e61cc5b146b87. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM2PV1760725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab881949b809ba4933a303362cd3836f7976e1724da82b5380d294888ae88b0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM2PV1760726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f669061e6bbef058a438b310a6320567241265282b4d946fbfd6f653133e99. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM2PV1760727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ca987d6ea671b6e89373c46bcde7c4b7a8ae6e8afe8c8c92edef7f396bac83. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM2PV1760728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d1d2f3d1ca292686b5fe9f39ca340519419bb5308408af6f7f8162e593862d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM2PV1760729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9cc5317428f337f789c77f6b4f158cb714c318188b67a3371a756db0d7afacf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZVEM2350115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6a81718ddb9fe2c981698baca2c6f612fda39033957da7a0c3ceb8cee3013c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZVEM2329995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a00631cae5ff9bc192ff553e4ce8b29ebe945a56e7a0db180540054b1867155. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZVEM2322272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8e476ede4b7b9f5e66fd87888cc2a44dcf843bc760375bb1c3d623ed237044. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZ8LD1735899.
Imagine When the World Falls Down in the Sea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a29b52b8641bdd4a884faee094087ad21d627cbce709ac7bc6c4455a6a7fa46. 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/QZWFP2397136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0861f120240a428e80109e5e73f57bc12baa844c2a498bee960131f6d77dfee0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZWFP2397138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8e476ede4b7b9f5e66fd87888cc2a44dcf843bc760375bb1c3d623ed237044. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ8LD1735899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007eba52c300977e8dba20ebd4520825cf47f7b5c6b97abf8dea709e3c768738. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZANL1737313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1faccf51e8d367cbfdccaea84fe9a6b25b69c950e990b08e555174c33e193a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDA51871654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f0676fe33f14f5b3c5db56cef12af3de70f852717f3fe4efec133b0792209b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZDA51871655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9fd67220b2876e56c439fe851672e91d6776ce07b12b85a2e3caea639f1f01. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZES91843830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c3f54f557a4acb62b3517acfa3c432276751166e38f11f14a33322c31c8487. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZES91843831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa727cff934b79670bfb404a9db6aa1c78024d85f110c57a6f942bd02a9017f7b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZES91843832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c869303a6d3d06be6c4d6dd4d9f5249a1eb11688d439054a838b548f2a4a89e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDA61929835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94382fed7a5b55a46b713f2985d3c2847efc96d18bac326111ab4d24bb70549. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM24S2009199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff858068a4664218a244631e4737bc67b8f06c1d209c24cb54f52968255e8df. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM24S2010349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871d39f0009b1ea82f3789b2ab1168f1e8fe944b3e41c84e85e4986334dd20ee. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM24S2101486.