thumb|Nýdönsk after a concert in September 2018.Nýdönsk (alternatively Ný dønsk or Ný dönsk, literally New Danish) is an Icelandic musical group established in 1987Tonlist.is: Nýdönsk biography by Dan
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 0xa3fe81b143cbcaadfa69ec33a77e03639e4c438e65d56fbc4bc649d92474402e. 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/ddaa421b-3816-4adb-9f86-3b0c7eca4a9c.json and https://artists.proofprofile.net/proofs/artist/ddaa421b-3816-4adb-9f86-3b0c7eca4a9c.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 0xd4a2dec91bd7dcbf43bf984f7f75d623978224a30f87e543c8aa8eab5206adca. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/ISA110706603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e75b10378460acd8a79a91fcf256795551abfdb7857084d5b01da876b92c486. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:44:22Z), 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/ISA109103401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc2bb75c54428a1b299fe3f4ecc1855606a40452ace9a2fbf6bd5a167170766. 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/ISA110706811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f632bbd83bd5c77026f750a5213e4f7a93a4f00c220a45f0c831007e3e95c0. 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/ISA109701401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f1ee73eca6346c6851b4ea313142e986872ea499b33c003235fddfa01561f6. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:56:19Z), 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/ISA110707103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435fef2078ae6a2fe156aae884fba8a5b48a6222c113ae41b6ac79f67f85c6ff. 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/ISA110707202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97947f316029a5939751898842eed88f2b2bcb32f116d26d79d8d05fa6b78de3. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ISA110707203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476a61f3ed0d0f1d262c8f168b80e25a0401d2b05e3eae0fc3ac81d30c8515e6. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:33:00Z), 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/ISZ100200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d10ba361e880ba74f34b3c4491abf0adb34f8b5b88480fbc7c6023d2ab5f61. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/ISZRU1012838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5008cc58a1a6f81bbcfa7c891e40aa33b97173f518d9920325e48bdc820274. 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/ISA111205101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683e26e4afac36bfbb907ca3fac207a9f148c62798b3d493169a2a99dd581822. 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/ISA111205102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66406ef19122b14ab5ebe7f4f450dbba22b921d5a0b8d82ea64d2ec274a61443. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ISA111205106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d5855938809e0c488d2da9f2bf17cf709ef268d79c985a3b610ada55d25ec2. 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/ISA111205110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b5a7833b6f1bc22f44fa1d94e65e786d45e19bf5233d4668be9cfc4c48a29d. 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/ISA111205118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94787ec683b831c26b1afaeef1bbda21a79c429d063a0eb62d26e637c4375688. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ISA111205119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7501a55395084b02a5e8f87756e636c15058cbd35d2a67e0b1da4db4a367583c. 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/ISZ981300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c04259edfcbd34d7d2dd2e0c95417f29e17f9a338ccbe305e30763d839fc5f8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ISV441422101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe569cfa76c53f67cc87716aa120d09b6b4b653369312a50b7a0d0153e0b11ee. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ISV441422102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0935e57bac4491e23627e3f3f45e5598ff75e81fbde442b9762a4fa605bfd76. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ISV441422109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0d1bc198c1c2519953e9ee483dde37a1697685ea82dbbfde073a80f8e4a758. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ISV441719601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7a694e1c3bad0aef679eee247770548bc1afbef370b0cad25b5d21cd33a752. 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/ISV442050401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548127353157e00224a8c9cdb330511e1ecf584685e314331881a525fbf9533d. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:58:25Z), 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/ISV982476001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50de24f29013bae72e5d8223c21c989a363eb7d6fa798550f7d2d8b5b1795a2e. 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/ISA111102205.