"Nova Heart" is a song by the Canadian new wave band Spoons. It was released in May 1982 as the first single from their 1982 album Arias & Symphonies. It was their first song to appear on the Canadian
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 0x20846b6a70eb80aa924a7a6d7d229d4f525175b0946eaee853d659d4ce78cca5. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/339ab263-55e0-4c4f-a1d5-6688570f3060.json and https://artists.proofprofile.net/proofs/artist/339ab263-55e0-4c4f-a1d5-6688570f3060.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 0xb79160de457d38d0f1d837c93be5c579627b40962a2cb85246b8f4ad81ed6c87. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/HKE022211415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f0f46f8732feef3859ac3abed956811d0e16704d50033ef52d7a449139eb7f. 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/HKE022211416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb249978aa35cfab9908c3665c5c2a1644e6f90955cfc7b204da584fc935672aa. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKE022211420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad685527ad7c882ec90a2c1b85a51e5e7b808dd036f630a7715b8a5bce22e3fe. 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/HKE022211421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119b3822c84fcf178b0361de88d74e91d8b97210107a4491e4d9e14a91b897ce. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/HKE022211418.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6238e3f96d2b30c87cca1559a2df4d4fe8044e7fe31725f1ef0190e1724cb273. 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/CNZ852314784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6a8254d0304d21b557b8e3ce37ebee7d189e71d70b73dd6219354f6f918fcf. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CNZ852315123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf39718171861b8aacc5f3f39f06cd5c4fc92d3fee4ce0cd837c14431ceec6a. 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/CNZ852315142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76662dc8430285e6fab57fa1606626294bc8c7c61e7159091af1633d08d4d437. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CNZ852315144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0139267c2176d7715c84dfbe7bae35626500bee61b397a2c2c6997ce769cab11. 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/CNZ852315168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c801287e0cc55522a7364e4ddde2273a40823ee4dafb02cf07042657fca7df2. 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/HKE022211430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6695f0fbfc700cb5ad6561538106d193545fe29520bfa0005d85342538bb6b4. 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/HKE022211432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95b84cdcd737ff93be961f26239892ccf960d3cbe7f1b1574cff090438c6c43. 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/HKE022211434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c6a6ce3c8bd5193d2e6433637975b5591173b87a976c66f172b19c10e24eee. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKE022211435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f9a75bd73c01b4005aadff63deab8b6d942962dfbac7f00871376a50353e9e. 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/HKE022211446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1137c6e07adece25dddac2fc48fc2ab3f350db9aaa0bd69f4b5c2e1f4d9bca9c. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/HKE022211449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b5ce62a3ca4e967e72bdd2de6d1bbb9406d73ae7f14821ed567fd7f0aa4605. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HKE022211448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65e8dfe148093d65ae646a4703b521ef2a230e64b562c9dc4b1cdf4d0c58844. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKG732122467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad4232ffe86ae2e0e3e44f0ce22d524edf0b56a837c348b5cceac1b8ab6ee36. 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/HKG732122468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf361255441f9a940de7b27bc0d46f86341bf52564b7846d94253a3edc8f3bc15. 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/HKG732122470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70e67055cdfd2e00fb2bc5aec1d0a46daa4f3b9fc7202002c9f8002f9d047da. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HKG732122471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe018d9ae31d9c6f5def16f8d04d361c7d27256ddc9702db829e69bdc143a7c8e. 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/HKG732122473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e8e639522ec7890ed270d4ef8bee8d0e2aa3151b9f2cf88e5f5e167fb22e91. 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/HKG732122474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6660ba60814b48633aab2229c23c1e9ca31e0b774ae449346c286f9e15184d. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/HKG732122465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdf3678d7875f0cf2716356f029222b003c74bee801d082efd1a3d16c743e63. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/HKG732122466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6e55633d1ce642ac6e9bb9801a1628b0c331108d3785b35c8fe1892b73c553. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HKG732122469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d6cc89e13c860f23b3778e52a1a3e2c2926bd6bf75052d2a706dcb1fa6d47f. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/HKG732122472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f87a6c1e725c0c1ac52ef6d53c81bf565815cd789c6d274724fc4d76dfc91b. 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/HKG732122462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e1603bb9762ccb302cd0f46d9701908b8b8d0809b5d198e6d555943aae31cd. 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/HKG732122463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bce95726d9b2ab0716034fbfbac3156c82db6fefc8a5fbc1d11acf8bc99f104. 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/HKG732122464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb518d55f2862de297b288f3b0a2c2ffdd241e56b6bc674de715c66c676093200. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/HKG732122461.