1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe8df93a8ec505d0e765c9ed31501799e131b7f05fca2c21db4ff780eb61286ad. 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/07bb69b4-0cb4-4f42-8587-3a54c6857e8c.json and https://artists.proofprofile.net/proofs/artist/07bb69b4-0cb4-4f42-8587-3a54c6857e8c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x2f9f04cbb20efeddb1164a05f15acdb0217ee9f07a2d074cbf5c836ad1db839b","isrc":"FXQ892200499","name":"The Way","registered_at":"2026-06-10T23:26:41Z","spotify_id":"47slEkHGlo9CClZgvGlkqi","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9f04cbb20efeddb1164a05f15acdb0217ee9f07a2d074cbf5c836ad1db839b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/47slEkHGlo9CClZgvGlkqi.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/47slEkHGlo9CClZgvGlkqi.
{"copyright_id":"0x45c5d4ebca98d63580b420e2ebcf4cd9732b4b74bfb4ce816dba46fd0f2c2206","isrc":"FXQ892200379","name":"Please Stay","registered_at":"2026-06-09T00:24:31Z","spotify_id":"3B02q7dv7jsSEtXZjWikXm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c5d4ebca98d63580b420e2ebcf4cd9732b4b74bfb4ce816dba46fd0f2c2206. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3B02q7dv7jsSEtXZjWikXm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3B02q7dv7jsSEtXZjWikXm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224f6c9299b4a96affb93e11b75778fae134f2a665f3996a3be1c3daea65cff1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1vLzTZc7Lmx3tYExdg9aGq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1vLzTZc7Lmx3tYExdg9aGq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444e4578ea98315833955a070b292470f53e165c624ee304c1aacf873f914b68. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/28sAbDIwccTq7gPrXy6zoc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/28sAbDIwccTq7gPrXy6zoc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224f6c9299b4a96affb93e11b75778fae134f2a665f3996a3be1c3daea65cff1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3pMnvqifOUlB4Eo8YtmbOu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3pMnvqifOUlB4Eo8YtmbOu.
{"copyright_id":"0x45c5d4ebca98d63580b420e2ebcf4cd9732b4b74bfb4ce816dba46fd0f2c2206","isrc":"FXQ892200379","name":"Please Stay","registered_at":"2026-06-09T00:24:31Z","spotify_id":"1GrD77X1QpEfNgF7E1GvdS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c5d4ebca98d63580b420e2ebcf4cd9732b4b74bfb4ce816dba46fd0f2c2206. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1GrD77X1QpEfNgF7E1GvdS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1GrD77X1QpEfNgF7E1GvdS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23ebdc26468a6a76b6d9a7301f131524860595c305d01af4e714abed38f5ee5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1drZtDgJBtQ6Y99RRH13JK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1drZtDgJBtQ6Y99RRH13JK.
{"copyright_id":"0x812750afb3dfed02e10c12ee0a845ada8d2aa0e797861ecafd074087af3622fc","isrc":"FXQ892300079","name":"Better Than Me","registered_at":"2026-06-07T05:57:20Z","spotify_id":"0Elu091umlaYt6kivgVs6X","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812750afb3dfed02e10c12ee0a845ada8d2aa0e797861ecafd074087af3622fc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Elu091umlaYt6kivgVs6X.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Elu091umlaYt6kivgVs6X.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1575f8523e3d0f50d327e15ea858175749a4556208ef6605646a84bd62b2d29. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/25cn40wdaGGNDTJTGTtDKR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/25cn40wdaGGNDTJTGTtDKR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653de1c5421f496506093f390ccec7cc97ce21e626cb6b12b033e58c7e40e55c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/71qPS1VQ6NNWEjv6tBdJRS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/71qPS1VQ6NNWEjv6tBdJRS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c272f10daa78f5ed84e457a8b0c180183d7aa978b2321fd3ad5e6dcf885149. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Mt60ByiUEt1CEoMG6vdTo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Mt60ByiUEt1CEoMG6vdTo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c6d3dd51bf5fa36e69c8f918c8dcef6c684089eec9b76b46e12b10762a457e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/593unhwKvPpghkB3N3r8BS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/593unhwKvPpghkB3N3r8BS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629e7b9a8540ca240a215c64517fb47cc2d379f0dc494d87639ff97c751767e4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1zumjd8Hp0GIu3g14g8xx0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1zumjd8Hp0GIu3g14g8xx0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4719dadcc7f2f251482e58262f15551bd99172b74251208060dc5da6f8626fc7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5D5ozxcof41qi9V6ypcAJ8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5D5ozxcof41qi9V6ypcAJ8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee7df713d4104c5e24cd459d615528382de576cd5c0351c50d68bbe83aa84ed. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1tMTBZzgSZwBQc65fvCggD.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1tMTBZzgSZwBQc65fvCggD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc369ff067b5c47e8149c12c6458579e7b0b96acdf5213bad22706f244e20bf15. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/362PVrKFsGk1rzV4WpBj4H.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/362PVrKFsGk1rzV4WpBj4H.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21351b1aa87ad7caed6ea1a7960d61c21c335641c7198e1a4b21c9592bdc3d7a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7suvnd6pPVk3H2ClEtu4gn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7suvnd6pPVk3H2ClEtu4gn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ac13f007f64c606be318b963f537cdd0e691778458c3cd340bde7be4915333. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/04dNIOAsZDZBt5H50w3MVB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/04dNIOAsZDZBt5H50w3MVB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22299d3037afaebf717d8b561e1eb06c97c10f2918cc3e5697a095e9491bc36a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1L2u6dxpJ94uie7pFtE9Mn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1L2u6dxpJ94uie7pFtE9Mn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1add97dce95f6421e0d2783c3cbe4e2609cb7b30ebfcb4a29fd61bb044ee1602. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2QdMGLt5keU4rtzYw8weEp.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2QdMGLt5keU4rtzYw8weEp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60894e52002c40508022879f227694d523d0506f63e3c2ef6a4caf7f7e001034. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6RXqDKW5MT07Gc5J6iEzlD.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6RXqDKW5MT07Gc5J6iEzlD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389f3f5ffc15d250a2a92c5629f84de67a7a059d77ed6b85bc69ba20fcbdc4f6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Oao2H7HhfKnUBNodPLMbD.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Oao2H7HhfKnUBNodPLMbD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94091c57f46f8160940c070dab328d884676d3acd6b4139769a3846f9156a11. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4HYrKuZv5maD1G9V1Y7yda.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4HYrKuZv5maD1G9V1Y7yda.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b098a93660d7bf14169294d6ffeadc33927f5b6de54133f1b455466ad9c2b3e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2hXpFIQcAGSFYFr6KiQNjK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2hXpFIQcAGSFYFr6KiQNjK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55c0a17961abdf05619fd495f72107a72e6576679076cd415c56083d519cb66. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3fWYrG6r2uDPxBYnuUUpb9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3fWYrG6r2uDPxBYnuUUpb9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9bc57dad42ac17bf544519a34866896263f398cf18cffa453a6529a2bdb794. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7KVS86IvQRTp8iuqyj6HOJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7KVS86IvQRTp8iuqyj6HOJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa09cd0e7a2ed1f46c226931ad631000696f1d07bf108ebc5eeb8204666e5c9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4mvO8FMgWmWFiAKafIwW3d.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4mvO8FMgWmWFiAKafIwW3d.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72983bd067b4d6620d29c686cc161aeb4f78738cdb48371082b7cc333f112cab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6OpOMtO57sRuaHq2RZO1U1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6OpOMtO57sRuaHq2RZO1U1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582be9a10c1c121818f21ee391635bd162e141164c7480e27575aa6e2d14820c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/72vclXWvJtkFgALSfuX44I.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/72vclXWvJtkFgALSfuX44I.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92eb492cd2f2432154614147d18a7216544f6efc48f502a071114a7a55512558. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2HbIfGXrg2cyy8yVOoCJhB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2HbIfGXrg2cyy8yVOoCJhB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc929a2e4f75532e4896f3171c44e5e8de6ab1dfd02e35f64ee59e1eb420380. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2p462diG7BBRwlp61kuvNf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2p462diG7BBRwlp61kuvNf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79f9d5ec8e6d1b8388ae72bed1da585e84c44c79538e2dc7e6169b4782583f5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/74zddYeCEHW8ORcr4t1O8K.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/74zddYeCEHW8ORcr4t1O8K.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644279ecdb74cb4bf31ba66d37719069a1290d6f2a80855947ccd26936e7a962. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2WpJ3GXB4t5wXJDzb5MW8O.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2WpJ3GXB4t5wXJDzb5MW8O.